Engine parameters

The Chevrolet Impala has 104 engine parameters.

● Confirmed◆ In testing○ Supported× Not supported

1-2 shift error `IMPALA_1_2_SHIFT_ERROR`

Request22 19 97
Service 22DID 1997
Module7E0 → 7E8
Every1 s
Testing

Bits 0 to 7 of the reply, 8 bits.

Formula: (val ÷ 40)
Range: 0 to 6.375 s
Unit: s

In testing for 1988 to 1996, 2000 to 2020.

1-2 shift time `IMPALA_1_2_SHIFT_TIME`

Request22 19 93
Service 22DID 1993
Module7E0 → 7E8
Every1 s
Testing

Bits 0 to 7 of the reply, 8 bits.

Formula: (val ÷ 40)
Range: 0 to 6.375 s
Unit: s

In testing for 1988 to 1996, 2000 to 2020.

2-3 shift error `IMPALA_2_3_SHIFT_ERROR`

Request22 19 98
Service 22DID 1998
Module7E0 → 7E8
Every1 s
Testing

Bits 0 to 7 of the reply, 8 bits.

Formula: (val ÷ 40)
Range: 0 to 6.375 s
Unit: s

In testing for 1988 to 1996, 2000 to 2020.

2-3 shift time `IMPALA_2_3_SHIFT_TIME`

Request22 19 94
Service 22DID 1994
Module7E0 → 7E8
Every1 s
Testing

Bits 0 to 7 of the reply, 8 bits.

Formula: (val ÷ 40)
Range: 0 to 6.375 s
Unit: s

In testing for 1988 to 1996, 2000 to 2020.

3-4 shift error `IMPALA_3_4_SHIFT_ERROR`

Request22 19 99
Service 22DID 1999
Module7E0 → 7E8
Every1 s
Testing

Bits 0 to 7 of the reply, 8 bits.

Formula: (val ÷ 40)
Range: 0 to 6.375 s
Unit: s

In testing for 1988 to 1996, 2000 to 2020.

3-4 shift time `IMPALA_3_4_SHIFT_TIME`

Request22 19 95
Service 22DID 1995
Module7E0 → 7E8
Every1 s
Testing

Bits 0 to 7 of the reply, 8 bits.

Formula: (val ÷ 40)
Range: 0 to 6.375 s
Unit: s

In testing for 1988 to 1996, 2000 to 2020.

Absolute load value `LOAD_ABS`SAE J1979Confirmed

Request01 43
Service 01PID 43
Module7E0 → 7E8
Every250 ms

Bits 0 to 15 of the reply, 16 bits.

Formula: (val × 100 ÷ 255)
Range: 0 to 25700 %
Unit: %

Confirmed for 2007, 2011, 2013.

Active grille cold temperature mode `IMPALA_ACTIVE_GRILLE_COLD_T`

Request22 23 9B
Service 22DID 239B
Module7E0 → 7E8
Every5 s
Testing

Bits 0 to 7 of the reply, 8 bits.

Formula: val
Range: 0 to 255
Unit: Number

In testing for 1988 to 1996, 2000 to 2020.

Active grille shutter position `IMPALA_ACTIVE_GRILLE_SHUTTER_POS`

Request22 23 66
Service 22DID 2366
Module7E0 → 7E8
Every1 s
Testing

Bits 0 to 7 of the reply, 8 bits.

Formula: (val × 20 ÷ 51)
Range: 0 to 100 %
Unit: %

In testing for 1988 to 1996, 2000 to 2020.

Active grille shutter position command `IMPALA_ACTIVE_GRILLE`

Request22 23 64
Service 22DID 2364
Module7E0 → 7E8
Every1 s
Testing

Bits 0 to 7 of the reply, 8 bits.

Formula: (val × 20 ÷ 51)
Range: 0 to 100 %
Unit: %

In testing for 1988 to 1996, 2000 to 2020.

Air conditioning high side pressure `IMPALA_AC_HIGH_SIDE_P`

Request22 15 64
Service 22DID 1564
Module7E0 → 7E8
Every1 s
Testing

Bits 0 to 7 of the reply, 8 bits.

Formula: (val × 2.02)
Range: 0 to 515.1 psi
Unit: psi

In testing for 1988 to 1996, 2000 to 2020.

Air filter life remaining `IMPALA_AIRFILT_LIFE`

Request22 36 A7
Service 22DID 36A7
Module7E0 → 7E8
Every30 s
Testing

Bits 0 to 7 of the reply, 8 bits.

Formula: val
Range: 0 to 100 %
Unit: %

In testing for 1988 to 1996, 2000 to 2020.

Air flow rate from mass air flow sensor `MAF`SAE J1979Confirmed

Pelican can show this parameter as the mass air flow.

Request01 10
Service 01PID 10
Module7E0 → 7E8
Every250 ms

Bits 0 to 15 of the reply, 16 bits.

Formula: (val ÷ 100)
Range: 0 to 655.35 g/s
Unit: g/s

Confirmed for 2007, 2011, 2013 to 2014, 2017, 2019. Supported for 1996, 2016, 2018, 2020.

Air/fuel ratio, commanded `IMPALA_AIR_FUEL_RAT_CMD`

Request22 11 9E
Service 22DID 119E
Module7E0 → 7E8
Every1 s
Testing

Bits 0 to 7 of the reply, 8 bits.

Formula: (val ÷ 10)
Range: 0 to 25.5
Unit: Number

In testing for 1988 to 1996, 2000 to 2020.

Ambient air temperature 2 `IMPALA_AIR_TEMP_AMBIENT_2`

Request22 23 2C
Service 22DID 232C
Module7E0 → 7E8
Every5 s
Testing

Bits 0 to 7 of the reply, 8 bits.

Formula: (val − 40)
Range: -40 to 215 °C
Unit: °C

In testing for 1988 to 1996, 2000 to 2020.

Axle torque driver requested `IMPALA_AXLE_TQ_DRIVER_REQ`

Request22 24 34
Service 22DID 2434
Module7E0 → 7E8
Every1 s
Testing

Bits 0 to 15 of the reply, 16 bits.

Formula: (val − 22534)
Range: -22534 to 43001 N·m
Unit: N·m

In testing for 1988 to 1996, 2000 to 2020.

Balance rate, cylinder 1 `IMPALA_BALANCE_RATE_CYL_1`

Request22 16 2F
Service 22DID 162F
Module7E0 → 7E8
Every1 s
Testing

Bits 0 to 15 of the reply, 16 bits.

Formula: (val ÷ 64 − 512)
Range: -512 to 511
Unit: Number

In testing for 1988 to 1996, 2000 to 2020.

Balance rate, cylinder 2 `IMPALA_BALANCE_RATE_CYL_2`

Request22 16 30
Service 22DID 1630
Module7E0 → 7E8
Every1 s
Testing

Bits 0 to 15 of the reply, 16 bits.

Formula: (val ÷ 64 − 512)
Range: -512 to 511
Unit: Number

In testing for 1988 to 1996, 2000 to 2020.

Balance rate, cylinder 3 `IMPALA_BALANCE_RATE_CYL_3`

Request22 16 31
Service 22DID 1631
Module7E0 → 7E8
Every1 s
Testing

Bits 0 to 15 of the reply, 16 bits.

Formula: (val ÷ 64 − 512)
Range: -512 to 511
Unit: Number

In testing for 1988 to 1996, 2000 to 2020.

Balance rate, cylinder 4 `IMPALA_BALANCE_RATE_CYL_4`

Request22 16 32
Service 22DID 1632
Module7E0 → 7E8
Every1 s
Testing

Bits 0 to 15 of the reply, 16 bits.

Formula: (val ÷ 64 − 512)
Range: -512 to 511
Unit: Number

In testing for 1988 to 1996, 2000 to 2020.

Balance rate, cylinder 5 `IMPALA_BALANCE_RATE_CYL_5`

Request22 16 33
Service 22DID 1633
Module7E0 → 7E8
Every1 s
Testing

Bits 0 to 15 of the reply, 16 bits.

Formula: (val ÷ 64 − 512)
Range: -512 to 511
Unit: Number

In testing for 1988 to 1996, 2000 to 2020.

Balance rate, cylinder 6 `IMPALA_BALANCE_RATE_CYL_6`

Request22 16 34
Service 22DID 1634
Module7E0 → 7E8
Every1 s
Testing

Bits 0 to 15 of the reply, 16 bits.

Formula: (val ÷ 64 − 512)
Range: -512 to 511
Unit: Number

In testing for 1988 to 1996, 2000 to 2020.

Barometric pressure `BARO`SAE J1979Confirmed

Normally obtained from one of a dedicated barometric sensor, a MAP sensor at key-on and during certain modes of driving, or inferred from a MAF sensor and other inputs during certain modes of driving. The control module reports BARO from whatever source it is derived from.

Request01 33
Service 01PID 33
Module7E0 → 7E8
Every250 ms

Bits 0 to 7 of the reply, 8 bits.

Formula: val
Range: 0 to 255 kPa
Unit: kPa

Confirmed for 2011, 2013. Supported for 1996, 2007, 2014, 2016 to 2019.

Barometric pressure, V6 `IMPALA_BAROMETRIC_P_V6`

Request22 12 51
Service 22DID 1251
Module7E0 → 7E8
Every1 s
Testing

Bits 0 to 7 of the reply, 8 bits.

Formula: val
Range: 0 to 255 kPa
Unit: kPa

In testing for 1988 to 1996, 2000 to 2020.

Cabin A/C high side sensor voltage `IMPALA_CABIN_AC_HIGH_SIDE_V`

Request22 11 44
Service 22DID 1144
Module7E0 → 7E8
Every1 s
Testing

Bits 0 to 7 of the reply, 8 bits.

Formula: (val ÷ 50)
Range: 0 to 5.1 V
Unit: V

In testing for 1988 to 1996, 2000 to 2020.

Calculated engine load `LOAD_PCT`SAE J1979Confirmed

Represents the amount of work the engine is doing. Expected to reach 100% at wide open throttle/wide open pedal at any altitude, temperature or rpm for both naturally aspirated and boosted engines. If engine load is limited for powertrain protection e.g. engine/turbocharger protection, this value may not reach 100%. For hybrid vehicles, indicates the torque produced only by the internal combustion engine, not the torque being delivered by the entire powertrain. For electric vehicles, the meaning of this parameter is undefined.

Pelican can show this parameter as the engine load.

Request01 04
Service 01PID 04
Module7E0 → 7E8
Every250 ms

Bits 0 to 7 of the reply, 8 bits.

Formula: (val × 100 ÷ 255)
Range: 0 to 100 %
Unit: %

Confirmed for 2007, 2011, 2013 to 2014, 2017, 2019. Supported for 1996, 2016, 2018, 2020.

Calculated engine oil pressure `IMPALA_EOP_CALC`Confirmed

Request22 1C 1B
Service 22DID 1C1B
Module7E0 → 7E8
Every1 s
Testing for 1988 to 1996, 2000 to 2016, 2018 to 2019

Example reply from a 2020 Chevrolet Impala.

Bits 0 to 7 of the reply, 8 bits.

0x00 = 0 → (0 × 400 ÷ 100) = 0 kPa

Formula: (val × 400 ÷ 100)
Range: 0 to 1020 kPa
Unit: kPa

Confirmed for 2017, 2020. In testing for 1988 to 1996, 2000 to 2016, 2018 to 2019.

Calculated engine oil temperature `IMPALA_EOT_CALC`Confirmed

Pelican can show this parameter as the engine oil temperature.

Request22 11 54
Service 22DID 1154
Module7E0 → 7E8
Every1 s
Testing for 1988 to 1996, 2000 to 2016, 2018 to 2019

Example reply from a 2020 Chevrolet Impala.

Bits 0 to 7 of the reply, 8 bits.

0x77 = 119 → (119 − 40) = 79 °C

Formula: (val − 40)
Range: -40 to 215 °C
Unit: °C

Confirmed for 2017, 2020. In testing for 1988 to 1996, 2000 to 2016, 2018 to 2019.

Catalyst temperature bank 1, sensor 1 `CATEMP11`SAE J1979Confirmed

Request01 3C
Service 01PID 3C
Module7E0 → 7E8
Every250 ms

Bits 0 to 15 of the reply, 16 bits.

Formula: (val ÷ 10 − 40)
Range: -40 to 6513.5 °C
Unit: °C

Confirmed for 2007, 2011, 2013. Supported for 1996, 2014, 2016 to 2019.

Catalyst temperature bank 2, sensor 1 `CATEMP21`SAE J1979Confirmed

Request01 3D
Service 01PID 3D
Module7E0 → 7E8
Every250 ms

Bits 0 to 15 of the reply, 16 bits.

Formula: (val ÷ 10 − 40)
Range: -40 to 6513.5 °C
Unit: °C

Confirmed for 2013. Supported for 1996, 2018.

Commanded equivalence ratio `EQ_RAT`SAE J1979Confirmed

Fuel systems that utilize conventional oxygen sensor display the inverse of the commanded open loop equivalence ratio (also known as lambda) while the fuel control system is in open loop. Will indicate 1.000 while in closed-loop fuel.

Pelican can show this parameter as the commanded lambda.

Request01 44
Service 01PID 44
Module7E0 → 7E8
Every250 ms

Bits 0 to 15 of the reply, 16 bits.

Formula: (val × 2 ÷ 65535)
Range: 0 to 1.99
Unit: Number

Confirmed for 2007, 2011, 2013 to 2014, 2017, 2019.

Commanded evaporative purge `EVAP_PCT`SAE J1979Confirmed

Request01 2E
Service 01PID 2E
Module7E0 → 7E8
Every1 s

Bits 0 to 7 of the reply, 8 bits.

Formula: (val × 100 ÷ 255)
Range: 0 to 100 %
Unit: %

Confirmed for 2011, 2013. Supported for 1996, 2007, 2014, 2016 to 2020.

Commanded throttle actuator control `TAC_PCT`SAE J1979Confirmed

Request01 4C
Service 01PID 4C
Module7E0 → 7E8
Every250 ms

Bits 0 to 7 of the reply, 8 bits.

Formula: (val × 100 ÷ 255)
Range: 0 to 100 %
Unit: %

Confirmed for 2011, 2013.

Cooling fan motor command `IMPALA_COOLING_FAN_MOTOR_CMD`Confirmed

Request22 13 AF
Service 22DID 13AF
Module7E0 → 7E8
Every1 s
Testing for 1988 to 1996, 2000 to 2016, 2018 to 2019

Example reply from a 2020 Chevrolet Impala.

Bits 0 to 7 of the reply, 8 bits.

0x00 = 0 → (0 × 100 ÷ 255) = 0 %

Formula: (val × 100 ÷ 255)
Range: 0 to 100 %
Unit: %

Confirmed for 2017, 2020. In testing for 1988 to 1996, 2000 to 2016, 2018 to 2019.

Cruise control status `IMPALA_CRUISE_CTRL_STAT`

Request22 20 67
Service 22DID 2067
Module7E0 → 7E8
Every1 s
Testing

Bits 0 to 7 of the reply, 8 bits.

Formula: val
Range: 0 to 255
Unit: Number

In testing for 1988 to 1996, 2000 to 2020.

Engine coolant temperature `ECT`SAE J1979Confirmed

Your engine temperature must operate within a certain temperature range to operate efficiently and safely. If it runs too hot, then your engine could be permanently damaged. If it runs too cold, then your engine will use more fuel than necessary.

Pelican can show this parameter as the engine coolant temperature.

Request01 05
Service 01PID 05
Module7E0 → 7E8
Every500 ms

Bits 0 to 7 of the reply, 8 bits.

Formula: (val − 40)
Range: -40 to 215 °C
Unit: °C

Confirmed for 2007, 2011, 2013 to 2014, 2017, 2019. Supported for 1996, 2016, 2018, 2020.

Engine oil absolute pressure `IMPALA_EOP_ABS`Confirmed

Request22 23 44
Service 22DID 2344
Module7E0 → 7E8
Every1 s
Testing for 1988 to 1996, 2000 to 2016, 2018 to 2019

Example reply from a 2020 Chevrolet Impala.

Bits 0 to 7 of the reply, 8 bits.

0x00 = 0 → (0 × 400 ÷ 100) = 0 kPa

Formula: (val × 400 ÷ 100)
Range: 0 to 1020 kPa
Unit: kPa

Confirmed for 2017, 2020. In testing for 1988 to 1996, 2000 to 2016, 2018 to 2019.

Engine oil life remaining `IMPALA_EO_LIFE_REMAINING`

Request22 4D C0
Service 22DID 4DC0
Module7E0 → 7E8
Every1 s
Testing

Bits 0 to 7 of the reply, 8 bits.

Formula: (val × 100 ÷ 255)
Range: 0 to 100 %
Unit: %

In testing for 1988 to 1996, 2000 to 2020.

Engine oil pressure `IMPALA_EOP`Confirmed

Request22 23 45
Service 22DID 2345
Module7E0 → 7E8
Every1 s
Testing for 1988 to 1996, 2000 to 2016, 2018 to 2019

Example reply from a 2020 Chevrolet Impala.

Bits 0 to 7 of the reply, 8 bits.

0x00 = 0 → (0 × 400 ÷ 100) = 0 kPa

Formula: (val × 400 ÷ 100)
Range: 0 to 1020 kPa
Unit: kPa

Confirmed for 2017, 2020. In testing for 1988 to 1996, 2000 to 2016, 2018 to 2019.

Engine oil pressure `IMPALA_EOP_DA11`

Request22 14 70
Service 22DID 1470
Module7E0 → 7E8
Every1 s
Testing

Bits 0 to 7 of the reply, 8 bits.

Formula: (val × 400 ÷ 100)
Range: 0 to 1020 kPa
Unit: kPa

In testing for 1988 to 1996, 2000 to 2020.

Engine oil pressure 2 `IMPALA_EOP_2`

Reads 0 psi at the sensor's zero-pressure floor, raw 36; the 0.6 psi slope is not yet checked against a gauge.

Request22 11 5C
Service 22DID 115C
Module7E0 → 7E8
Every1 s
Testing

Bits 0 to 7 of the reply, 8 bits.

Formula: (val × 3 ÷ 5 − 21.6)
Range: -21.6 to 131.39 psi
Unit: psi

In testing for 1988 to 1996, 2000 to 2020.

Engine oil pressure control solenoid valve command `IMPALA_EOP_CTRL_SOLENOID_VALVE_CMD`Confirmed

Request22 33 18
Service 22DID 3318
Module7E0 → 7E8
Every1 s
Testing for 1988 to 1996, 2000 to 2016, 2018 to 2019

Example reply from a 2020 Chevrolet Impala.

Bit 0 of the reply.

0b0 = 0 → 0

Formula: val
Range: 0 to 1
Unit: Off or on

Confirmed for 2017, 2020. In testing for 1988 to 1996, 2000 to 2016, 2018 to 2019.

Engine oil temperature `IMPALA_EOT`

Pelican can show this parameter as the engine oil temperature.

Request22 00 5C
Service 22DID 005C
Module7E0 → 7E8
Every5 s
Testing

Bits 0 to 7 of the reply, 8 bits.

Formula: (val − 40)
Range: -40 to 215 °C
Unit: °C

In testing for 1988 to 1996, 2000 to 2020.

Engine oil temperature 2 `IMPALA_EOT_2`

Request22 15 3E
Service 22DID 153E
Module7E0 → 7E8
Every5 s
Testing

Bits 0 to 7 of the reply, 8 bits.

Formula: (val − 40)
Range: -40 to 215 °C
Unit: °C

In testing for 1988 to 1996, 2000 to 2020.

Engine RPM `RPM`SAE J1979Confirmed

Request01 0C
Service 01PID 0C
Module7E0 → 7E8
Every250 ms

Bits 0 to 15 of the reply, 16 bits.

Formula: (val ÷ 4)
Range: 0 to 16383.75 rpm
Unit: rpm

Confirmed for 2011, 2013. Supported for 1996, 2007, 2014, 2016 to 2020.

Engine torque `IMPALA_ENG_TQ`

Request22 19 DE
Service 22DID 19DE
Module7E0 → 7E8
Every250 ms
Testing

Bits 0 to 15 of the reply, 16 bits.

Formula: val
Range: 0 to 65535 N·m
Unit: N·m

In testing for 1988 to 1996, 2000 to 2020.

Engine torque `IMPALA_ENG_TQ_7E0`

Request22 20 3F
Service 22DID 203F
Module7E0 → 7E8
Every250 ms
Testing

Bits 0 to 15 of the reply, 16 bits.

Formula: (val ÷ 4)
Range: 0 to 16383 N·m
Unit: N·m

In testing for 1988 to 1996, 2000 to 2020.

Evap system vapor pressure `EVAP_VP`SAE J1979Confirmed

The pressure signal is normally obtained from a sensor located in the fuel tank or a sensor in an evaporative system vapor line.

Request01 32
Service 01PID 32
Module7E0 → 7E8
Every250 ms

Bits 0 to 15 of the reply, 16 bits. The value is signed.

Formula: (val ÷ 4000)
Range: -8192 to 8191.75 kPa
Unit: kPa

Confirmed for 2011, 2013. Supported for 2007, 2014, 2016 to 2020.

Evaporative emissions purge `IMPALA_EVAPORATIVE`

Request22 11 70
Service 22DID 1170
Module7E0 → 7E8
Every1 s
Testing

Bits 0 to 7 of the reply, 8 bits.

Formula: (val ÷ 2.55)
Range: 0 to 100 %
Unit: %

In testing for 1988 to 1996, 2000 to 2020.

Exhaust gas recirculation duty cycle `IMPALA_EGR_DUTY`

Request22 11 71
Service 22DID 1171
Module7E0 → 7E8
Every1 s
Testing

Bits 0 to 7 of the reply, 8 bits.

Formula: (val ÷ 2.55)
Range: 0 to 100 %
Unit: %

In testing for 1988 to 1996, 2000 to 2020.

Exhaust gas recirculation voltage `IMPALA_EGR_V`

Request22 11 4B
Service 22DID 114B
Module7E0 → 7E8
Every1 s
Testing

Bits 0 to 7 of the reply, 8 bits.

Formula: (val ÷ 51)
Range: 0 to 5 V
Unit: V

In testing for 1988 to 1996, 2000 to 2020.

Fuel pressure `FP`SAE J1979Confirmed

Request01 0A
Service 01PID 0A
Module7E0 → 7E8
Every1 s

Bits 0 to 7 of the reply, 8 bits.

Formula: (val × 3)
Range: 0 to 765 kPa
Unit: kPa

Confirmed for 2013. Supported for 2014, 2016 to 2020.

Fuel rail pressure `FRP`SAE J1979Confirmed

Fuel rail pressure at the engine when the reading is referenced to atmosphere (gage pressure).

Request01 23
Service 01PID 23
Module7E0 → 7E8
Every250 ms

Bits 0 to 15 of the reply, 16 bits.

Formula: (val × 10)
Range: 0 to 655350 kPa
Unit: kPa

Confirmed for 2013. Supported for 2014, 2016 to 2020.

Heated oxygen sensor `IMPALA_HEATED_OXYGEN_SENS`

Request22 11 45
Service 22DID 1145
Module7E0 → 7E8
Every1 s
Testing

Bits 0 to 7 of the reply, 8 bits.

Formula: val
Range: 0 to 255 mV
Unit: mV

In testing for 1988 to 1996, 2000 to 2020.

Idle air control position `IMPALA_IDLE_AIR_CTRL_POS`

Request22 11 72
Service 22DID 1172
Module7E0 → 7E8
Every1 s
Testing

Bits 0 to 7 of the reply, 8 bits.

Formula: val
Range: 0 to 255
Unit: Number

In testing for 1988 to 1996, 2000 to 2020.

Ignition input on/off/start `IMPALA_IGN_INPUT_ON_OFF`

Request22 20 D0
Service 22DID 20D0
Module7E0 → 7E8
Every1 s
Testing

Bits 0 to 7 of the reply, 8 bits.

Formula: val
Range: 0 to 255
Unit: Number

In testing for 1988 to 1996, 2000 to 2020.

Ignition power mode `IMPALA_IGN_POWER_MODE`

Request22 20 7E
Service 22DID 207E
Module7E0 → 7E8
Every1 s
Testing

Bits 0 to 7 of the reply, 8 bits.

Formula: val
Range: 0 to 255
Unit: Number

In testing for 1988 to 1996, 2000 to 2020.

Injector duty cycle bank 1 `IMPALA_INJECTOR_DUTY_CYCLE_BANK_1`Confirmed

Request22 12 C3
Service 22DID 12C3
Module7E0 → 7E8
Every1 s
Testing for 1988 to 1996, 2000 to 2016, 2018 to 2019

Example reply from a 2020 Chevrolet Impala.

Bits 0 to 15 of the reply, 16 bits.

0x0037 = 55 → (55 × 150 ÷ 10000) = 0.825 ms

Formula: (val × 150 ÷ 10000)
Range: 0 to 983.025 ms
Unit: ms

Confirmed for 2017, 2020. In testing for 1988 to 1996, 2000 to 2016, 2018 to 2019.

Injector duty cycle bank 2 `IMPALA_INJECTOR_DUTY_CYCLE_BANK_2`Confirmed

Request22 12 C4
Service 22DID 12C4
Module7E0 → 7E8
Every1 s
Testing for 1988 to 1996, 2000 to 2016, 2018 to 2019

Example reply from a 2020 Chevrolet Impala.

Bits 0 to 15 of the reply, 16 bits.

0x0049 = 73 → (73 × 150 ÷ 10000) = 1.095 ms

Formula: (val × 150 ÷ 10000)
Range: 0 to 983.025 ms
Unit: ms

Confirmed for 2017, 2020. In testing for 1988 to 1996, 2000 to 2016, 2018 to 2019.

Injector pulse width, cylinder 1 `IMPALA_INJ_WIDTH_CYL_1`

Request22 11 93
Service 22DID 1193
Module7E0 → 7E8
Every1 s
Testing

Bits 0 to 15 of the reply, 16 bits.

Formula: (val ÷ 65.535)
Range: 0 to 1000 ms
Unit: ms

In testing for 1988 to 1996, 2000 to 2020.

Intake air temperature `IAT`SAE J1979Confirmed

Request01 0F
Service 01PID 0F
Module7E0 → 7E8
Every250 ms

Bits 0 to 7 of the reply, 8 bits.

Formula: (val − 40)
Range: -40 to 215 °C
Unit: °C

Confirmed for 2011. Supported for 1996, 2007, 2013 to 2014, 2016 to 2020.

Intake air temperature 2 `IMPALA_IAT_2`

Request22 15 38
Service 22DID 1538
Module7E0 → 7E8
Every5 s
Testing

Bits 0 to 7 of the reply, 8 bits.

Formula: (val − 40)
Range: -40 to 215 °C
Unit: °C

In testing for 1988 to 1996, 2000 to 2020.

Intake manifold absolute pressure `MAP`SAE J1979Confirmed

Request01 0B
Service 01PID 0B
Module7E0 → 7E8
Every1 s

Bits 0 to 7 of the reply, 8 bits.

Formula: val
Range: 0 to 255 kPa
Unit: kPa

Confirmed for 2011. Supported for 2007, 2013 to 2014, 2016 to 2020.

Knock retard `IMPALA_KNOCK_RETARD`Confirmed

Request22 11 A6
Service 22DID 11A6
Module7E0 → 7E8
Every1 s
Testing for 1988 to 1996, 2000 to 2016, 2018 to 2019

Example reply from a 2020 Chevrolet Impala.

Bits 0 to 7 of the reply, 8 bits.

0x00 = 0 → (0 × 22 ÷ 100) = 0 °

Formula: (val × 22 ÷ 100)
Range: 0 to 56.1 °
Unit: °

Confirmed for 2017, 2020. In testing for 1988 to 1996, 2000 to 2016, 2018 to 2019.

Knock retard, alternate `IMPALA_KNOCK_RETARD_ALT`

Request22 12 5D
Service 22DID 125D
Module7E0 → 7E8
Every1 s
Testing

Bits 0 to 7 of the reply, 8 bits.

Formula: val
Range: 0 to 255 °
Unit: °

In testing for 1988 to 1996, 2000 to 2020.

Knock sensor active counter `IMPALA_KNOCK_SENS_ACTIVE`

Request22 12 5E
Service 22DID 125E
Module7E0 → 7E8
Every3600 s
Testing

Bits 0 to 7 of the reply, 8 bits.

Formula: val
Range: 0 to 255
Unit: Number

In testing for 1988 to 1996, 2000 to 2020.

Last shift time `IMPALA_LAST_SHIFT_TIME`

Request22 19 92
Service 22DID 1992
Module7E0 → 7E8
Every1 s
Testing

Bits 0 to 7 of the reply, 8 bits.

Formula: (val ÷ 40)
Range: 0 to 6.375 s
Unit: s

In testing for 1988 to 1996, 2000 to 2020.

Long term fuel trim (bank 1) `LONGFT1`SAE J1979Confirmed

Request01 07
Service 01PID 07
Module7E0 → 7E8
Every1 s

Bits 0 to 7 of the reply, 8 bits.

Formula: (val × 100 ÷ 128 − 100)
Range: -100 to 99.2 %
Unit: %

Confirmed for 2011. Supported for 1996, 2007, 2013 to 2014, 2016 to 2020.

Mass airflow sensor `IMPALA_MAF`Confirmed

Pelican can show this parameter as the mass air flow.

Request22 00 10
Service 22DID 0010
Module7E0 → 7E8
Every1 s
Testing for 1988 to 1996, 2000 to 2016, 2018 to 2020

Example reply from a 2017 Chevrolet Impala.

Bits 0 to 15 of the reply, 16 bits.

0x017B = 379 → (379 × 100 ÷ 10000) = 3.79 g/s

Formula: (val × 100 ÷ 10000)
Range: 0 to 655.35 g/s
Unit: g/s

Confirmed for 2017. In testing for 1988 to 1996, 2000 to 2016, 2018 to 2020.

MIL cause `IMPALA_MIL_CAUSE`

Request22 13 5F
Service 22DID 135F
Module7E0 → 7E8
Every1 s
Testing

Bits 0 to 7 of the reply, 8 bits.

Formula: val
Range: 0 to 255
Unit: Number

In testing for 1988 to 1996, 2000 to 2020.

MIL status `IMPALA_MIL_STAT`

Request22 20 20
Service 22DID 2020
Module7E0 → 7E8
Every1 s
Testing

Bits 0 to 7 of the reply, 8 bits.

Formula: val
Range: 0 to 255
Unit: Number

In testing for 1988 to 1996, 2000 to 2020.

Misfire history, cylinder 1 `IMPALA_MIS_HISTORY_1`

Request22 12 01
Service 22DID 1201
Module7E0 → 7E8
Every1 s
Testing

Bits 0 to 15 of the reply, 16 bits.

Formula: val
Range: 0 to 65535
Unit: Number

In testing for 1988 to 1996, 2000 to 2020.

Misfire history, cylinder 2 `IMPALA_MIS_HISTORY_2`

Request22 12 02
Service 22DID 1202
Module7E0 → 7E8
Every1 s
Testing

Bits 0 to 15 of the reply, 16 bits.

Formula: val
Range: 0 to 65535
Unit: Number

In testing for 1988 to 1996, 2000 to 2020.

Misfire history, cylinder 3 `IMPALA_MIS_HISTORY_3`

Request22 12 03
Service 22DID 1203
Module7E0 → 7E8
Every1 s
Testing

Bits 0 to 15 of the reply, 16 bits.

Formula: val
Range: 0 to 65535
Unit: Number

In testing for 1988 to 1996, 2000 to 2020.

Misfire history, cylinder 4 `IMPALA_MIS_HISTORY_4`

Request22 12 04
Service 22DID 1204
Module7E0 → 7E8
Every1 s
Testing

Bits 0 to 15 of the reply, 16 bits.

Formula: val
Range: 0 to 65535
Unit: Number

In testing for 1988 to 1996, 2000 to 2020.

Misfire history, cylinder 5 `IMPALA_MIS_HISTORY_5`

Request22 11 F8
Service 22DID 11F8
Module7E0 → 7E8
Every1 s
Testing

Bits 0 to 15 of the reply, 16 bits.

Formula: val
Range: 0 to 65535
Unit: Number

In testing for 1988 to 1996, 2000 to 2020.

Misfire history, cylinder 6 `IMPALA_MIS_HISTORY_6`

Request22 11 F9
Service 22DID 11F9
Module7E0 → 7E8
Every1 s
Testing

Bits 0 to 15 of the reply, 16 bits.

Formula: val
Range: 0 to 65535
Unit: Number

In testing for 1988 to 1996, 2000 to 2020.

Misfires, current, cylinder 1 `IMPALA_MISFIRES_C1_CUR`Confirmed

Request22 12 06
Service 22DID 1206
Module7E0 → 7E8
Every1 s
Testing for 1988 to 1996, 2000 to 2016, 2018 to 2019

Example reply from a 2020 Chevrolet Impala.

Bits 0 to 7 of the reply, 8 bits.

0x00 = 0 → 0

Formula: val
Range: 0 to 255
Unit: Number

Confirmed for 2017, 2020. In testing for 1988 to 1996, 2000 to 2016, 2018 to 2019.

Misfires, current, cylinder 2 `IMPALA_MISFIRES_C2_CUR`Confirmed

Request22 12 05
Service 22DID 1205
Module7E0 → 7E8
Every1 s
Testing for 1988 to 1996, 2000 to 2016, 2018 to 2019

Example reply from a 2020 Chevrolet Impala.

Bits 0 to 7 of the reply, 8 bits.

0x00 = 0 → 0

Formula: val
Range: 0 to 255
Unit: Number

Confirmed for 2017, 2020. In testing for 1988 to 1996, 2000 to 2016, 2018 to 2019.

Misfires, current, cylinder 3 `IMPALA_MISFIRES_C3_CUR`Confirmed

Request22 12 07
Service 22DID 1207
Module7E0 → 7E8
Every1 s
Testing for 1988 to 1996, 2000 to 2016, 2018 to 2019

Example reply from a 2020 Chevrolet Impala.

Bits 0 to 7 of the reply, 8 bits.

0x00 = 0 → 0

Formula: val
Range: 0 to 255
Unit: Number

Confirmed for 2017, 2020. In testing for 1988 to 1996, 2000 to 2016, 2018 to 2019.

Misfires, current, cylinder 4 `IMPALA_MISFIRES_C4_CUR`Confirmed

Request22 12 08
Service 22DID 1208
Module7E0 → 7E8
Every1 s
Testing for 1988 to 1996, 2000 to 2016, 2018 to 2019

Example reply from a 2020 Chevrolet Impala.

Bits 0 to 7 of the reply, 8 bits.

0x00 = 0 → 0

Formula: val
Range: 0 to 255
Unit: Number

Confirmed for 2017, 2020. In testing for 1988 to 1996, 2000 to 2016, 2018 to 2019.

Misfires, current, cylinder 5 `IMPALA_MISFIRES_C5_CUR`Confirmed

Request22 11 EA
Service 22DID 11EA
Module7E0 → 7E8
Every1 s
Testing for 1988 to 1996, 2000 to 2016, 2018 to 2019

Example reply from a 2020 Chevrolet Impala.

Bits 0 to 7 of the reply, 8 bits.

0x00 = 0 → 0

Formula: val
Range: 0 to 255
Unit: Number

Confirmed for 2017, 2020. In testing for 1988 to 1996, 2000 to 2016, 2018 to 2019.

Misfires, current, cylinder 6 `IMPALA_MISFIRES_C6_CUR`Confirmed

Request22 11 EB
Service 22DID 11EB
Module7E0 → 7E8
Every1 s
Testing for 1988 to 1996, 2000 to 2016, 2018 to 2019

Example reply from a 2020 Chevrolet Impala.

Bits 0 to 7 of the reply, 8 bits.

0x00 = 0 → 0

Formula: val
Range: 0 to 255
Unit: Number

Confirmed for 2017, 2020. In testing for 1988 to 1996, 2000 to 2016, 2018 to 2019.

Outside air temperature `IMPALA_AAT`

Request22 11 61
Service 22DID 1161
Module7E0 → 7E8
Every5 s
Testing

Bits 0 to 7 of the reply, 8 bits.

Formula: (val − 40)
Range: -40 to 215 °C
Unit: °C

In testing for 1988 to 1996, 2000 to 2020.

Pressure control solenoid current, actual `IMPALA_P_CTRL_SOLENOID_ACT`

Request22 19 9E
Service 22DID 199E
Module7E0 → 7E8
Every1 s
Testing

Bits 0 to 7 of the reply, 8 bits.

Formula: val
Range: 0 to 255 mA
Unit: mA

In testing for 1988 to 1996, 2000 to 2020.

Pressure control solenoid current, reference `IMPALA_P_CTRL_SOLENOID`

Request22 19 9F
Service 22DID 199F
Module7E0 → 7E8
Every1 s
Testing

Bits 0 to 7 of the reply, 8 bits.

Formula: val
Range: 0 to 255 mA
Unit: mA

In testing for 1988 to 1996, 2000 to 2020.

Remaining oil life `IMPALA_REMAINING_OIL_LIFE`

Request22 11 9F
Service 22DID 119F
Module7E0 → 7E8
Every30 s
Testing

Bits 0 to 7 of the reply, 8 bits.

Formula: val
Range: 0 to 255 %
Unit: %

In testing for 1988 to 1996, 2000 to 2020.

Short term fuel trim (bank 1) `SHRTFT1`SAE J1979Confirmed

Correction being used by the closed-loop fuel algorithm.

Pelican can show this parameter as the short term fuel trim.

Request01 06
Service 01PID 06
Module7E0 → 7E8
Every250 ms

Bits 0 to 7 of the reply, 8 bits.

Formula: (val × 100 ÷ 128 − 100)
Range: -100 to 99.2 %
Unit: %

Confirmed for 2007, 2011, 2013, 2017. Supported for 1996, 2014, 2016, 2018 to 2020.

Short term fuel trim (bank 2) `SHRTFT2`SAE J1979Confirmed

Correction being used by the closed-loop fuel algorithm.

Pelican can show this parameter as the short term fuel trim.

Request01 08
Service 01PID 08
Module7E0 → 7E8
Every1 s

Bits 0 to 7 of the reply, 8 bits.

Formula: (val × 100 ÷ 128 − 100)
Range: -100 to 99.2 %
Unit: %

Confirmed for 2013, 2017. Supported for 1996, 2014, 2016, 2018 to 2020.

Throttle position calculated `IMPALA_THROTTLE_POS_CALC`

Request22 28 10
Service 22DID 2810
Module7E0 → 7E8
Every1 s
Testing

Bits 0 to 7 of the reply, 8 bits.

Formula: (val × 20 ÷ 51)
Range: 0 to 100 %
Unit: %

In testing for 1988 to 1996, 2000 to 2020.

Timing advance `SPARKADV`SAE J1979Confirmed

Ignition timing spark advance for the first cylinder. Measured in degrees before dead center. Minus is degrees before dead center, positive is degrees after.

Request01 0E
Service 01PID 0E
Module7E0 → 7E8
Every250 ms

Bits 0 to 7 of the reply, 8 bits.

Formula: (val ÷ 2 − 64)
Range: -64 to 63.5 °
Unit: °

Confirmed for 2011. Supported for 1996, 2007, 2013 to 2014, 2016 to 2020.

Total knock retard `IMPALA_TOTAL_KNOCK_RETARD`Confirmed

Request22 12 D9
Service 22DID 12D9
Module7E0 → 7E8
Every1 s
Testing for 1988 to 1996, 2000 to 2016, 2018 to 2019

Example reply from a 2020 Chevrolet Impala.

Bits 0 to 7 of the reply, 8 bits.

0x00 = 0 → (0 × 45 ÷ 100) = 0 °

Formula: (val × 45 ÷ 100)
Range: 0 to 114.75 °
Unit: °

Confirmed for 2017, 2020. In testing for 1988 to 1996, 2000 to 2016, 2018 to 2019.

Total misfire `IMPALA_TOTAL_MISFIRE`Confirmed

Request22 12 00
Service 22DID 1200
Module7E0 → 7E8
Every1 s
Testing for 1988 to 1996, 2000 to 2016, 2018 to 2019

Example reply from a 2020 Chevrolet Impala.

Bits 0 to 7 of the reply, 8 bits.

0x00 = 0 → 0

Formula: val
Range: 0 to 255
Unit: Number

Confirmed for 2017, 2020. In testing for 1988 to 1996, 2000 to 2016, 2018 to 2019.

Transmission fluid temperature `IMPALA_ATF_T`Confirmed

Pelican can show this parameter as the transmission fluid temperature.

Request22 19 40
Service 22DID 1940
Module7E2 → 7EA
Every1 s
Testing for 1988 to 1996, 2000 to 2016, 2018 to 2019

Example reply from a 2017 Chevrolet Impala.

Bits 0 to 7 of the reply, 8 bits.

0x77 = 119 → (119 − 40) = 79 °C

Formula: (val − 40)
Range: -40 to 215 °C
Unit: °C

Confirmed for 2017. In testing for 1988 to 1996, 2000 to 2016, 2018 to 2019. Supported for 2020.

Transmission fluid temperature, variant 1 `IMPALA_ATF_T_VAR_1`Confirmed

Pelican can show this parameter as the transmission fluid temperature.

Request22 19 40
Service 22DID 1940
Module7E0 → 7E8
Every5 s
Testing for 1988 to 1996, 2000 to 2019

Example reply from a 2020 Chevrolet Impala.

Bits 0 to 7 of the reply, 8 bits.

0x75 = 117 → (117 − 40) = 77 °C

Formula: (val − 40)
Range: -40 to 215 °C
Unit: °C

Confirmed for 2020. In testing for 1988 to 1996, 2000 to 2019.

Transmission fluid temperature, variant 6 `IMPALA_ATF_T_VAR_6`

Pelican can show this parameter as the transmission fluid temperature.

Request22 28 0D
Service 22DID 280D
Module7E2 → 7EA
Every5 s
Testing

Bits 0 to 7 of the reply, 8 bits.

Formula: (val − 40)
Range: -40 to 215 °C
Unit: °C

In testing for 1988 to 1996, 2000 to 2020.

Engine › OxygenSensors

02S Bank 1, Sensor 1 present `O2S11_EXISTS`SAE J1979Confirmed

Request01 13
Service 01PID 13
Module7E0 → 7E8
Every3600 s

Bit 7 of the reply.

Formula: val
Range: 0 to 1
Unit: No or yes

Confirmed for 2007. Supported for 1996, 2011, 2013 to 2014, 2016 to 2020.

02S Bank 1, Sensor 2 present `O2S12_EXISTS`SAE J1979Confirmed

Request01 13
Service 01PID 13
Module7E0 → 7E8
Every3600 s

Bit 6 of the reply.

Formula: val
Range: 0 to 1
Unit: No or yes

Confirmed for 2007. Supported for 1996, 2011, 2013 to 2014, 2016 to 2020.

02S Bank 1, Sensor 3 present `O2S13_EXISTS`SAE J1979Confirmed

Request01 13
Service 01PID 13
Module7E0 → 7E8
Every3600 s

Bit 5 of the reply.

Formula: val
Range: 0 to 1
Unit: No or yes

Confirmed for 2007. Supported for 1996, 2011, 2013 to 2014, 2016 to 2020.

02S Bank 1, Sensor 4 present `O2S14_EXISTS`SAE J1979Confirmed

Request01 13
Service 01PID 13
Module7E0 → 7E8
Every3600 s

Bit 4 of the reply.

Formula: val
Range: 0 to 1
Unit: No or yes

Confirmed for 2007. Supported for 1996, 2011, 2013 to 2014, 2016 to 2020.

02S Bank 2, Sensor 1 present `O2S21_EXISTS`SAE J1979Confirmed

Request01 13
Service 01PID 13
Module7E0 → 7E8
Every3600 s

Bit 3 of the reply.

Formula: val
Range: 0 to 1
Unit: No or yes

Confirmed for 2007. Supported for 1996, 2011, 2013 to 2014, 2016 to 2020.

02S Bank 2, Sensor 2 present `O2S22_EXISTS`SAE J1979Confirmed

Request01 13
Service 01PID 13
Module7E0 → 7E8
Every3600 s

Bit 2 of the reply.

Formula: val
Range: 0 to 1
Unit: No or yes

Confirmed for 2007. Supported for 1996, 2011, 2013 to 2014, 2016 to 2020.

02S Bank 2, Sensor 3 present `O2S23_EXISTS`SAE J1979Confirmed

Request01 13
Service 01PID 13
Module7E0 → 7E8
Every3600 s

Bit 1 of the reply.

Formula: val
Range: 0 to 1
Unit: No or yes

Confirmed for 2007. Supported for 1996, 2011, 2013 to 2014, 2016 to 2020.

02S Bank 2, Sensor 4 present `O2S24_EXISTS`SAE J1979Confirmed

Request01 13
Service 01PID 13
Module7E0 → 7E8
Every3600 s

Bit 0 of the reply.

Formula: val
Range: 0 to 1
Unit: No or yes

Confirmed for 2007. Supported for 1996, 2011, 2013 to 2014, 2016 to 2020.

Engine parameters

1-2 shift error IMPALA_1_2_SHIFT_ERROR

1-2 shift time IMPALA_1_2_SHIFT_TIME

2-3 shift error IMPALA_2_3_SHIFT_ERROR

2-3 shift time IMPALA_2_3_SHIFT_TIME

3-4 shift error IMPALA_3_4_SHIFT_ERROR

3-4 shift time IMPALA_3_4_SHIFT_TIME

Absolute load value LOAD_ABSSAE J1979Confirmed

Active grille cold temperature mode IMPALA_ACTIVE_GRILLE_COLD_T

Active grille shutter position IMPALA_ACTIVE_GRILLE_SHUTTER_POS

Active grille shutter position command IMPALA_ACTIVE_GRILLE

Air conditioning high side pressure IMPALA_AC_HIGH_SIDE_P

Air filter life remaining IMPALA_AIRFILT_LIFE

Air flow rate from mass air flow sensor MAFSAE J1979Confirmed

Air/fuel ratio, commanded IMPALA_AIR_FUEL_RAT_CMD

Ambient air temperature 2 IMPALA_AIR_TEMP_AMBIENT_2

Axle torque driver requested IMPALA_AXLE_TQ_DRIVER_REQ

Balance rate, cylinder 1 IMPALA_BALANCE_RATE_CYL_1

Balance rate, cylinder 2 IMPALA_BALANCE_RATE_CYL_2

Balance rate, cylinder 3 IMPALA_BALANCE_RATE_CYL_3

Balance rate, cylinder 4 IMPALA_BALANCE_RATE_CYL_4

Balance rate, cylinder 5 IMPALA_BALANCE_RATE_CYL_5

Balance rate, cylinder 6 IMPALA_BALANCE_RATE_CYL_6

Barometric pressure BAROSAE J1979Confirmed

Barometric pressure, V6 IMPALA_BAROMETRIC_P_V6

Cabin A/C high side sensor voltage IMPALA_CABIN_AC_HIGH_SIDE_V

Calculated engine load LOAD_PCTSAE J1979Confirmed

Calculated engine oil pressure IMPALA_EOP_CALCConfirmed

Calculated engine oil temperature IMPALA_EOT_CALCConfirmed

Catalyst temperature bank 1, sensor 1 CATEMP11SAE J1979Confirmed

Catalyst temperature bank 2, sensor 1 CATEMP21SAE J1979Confirmed

Commanded equivalence ratio EQ_RATSAE J1979Confirmed

Commanded evaporative purge EVAP_PCTSAE J1979Confirmed

Commanded throttle actuator control TAC_PCTSAE J1979Confirmed

Cooling fan motor command IMPALA_COOLING_FAN_MOTOR_CMDConfirmed

Cruise control status IMPALA_CRUISE_CTRL_STAT

Engine coolant temperature ECTSAE J1979Confirmed

Engine oil absolute pressure IMPALA_EOP_ABSConfirmed

Engine oil life remaining IMPALA_EO_LIFE_REMAINING

Engine oil pressure IMPALA_EOPConfirmed

Engine oil pressure IMPALA_EOP_DA11

Engine oil pressure 2 IMPALA_EOP_2

Engine oil pressure control solenoid valve command IMPALA_EOP_CTRL_SOLENOID_VALVE_CMDConfirmed

Engine oil temperature IMPALA_EOT

Engine oil temperature 2 IMPALA_EOT_2

Engine RPM RPMSAE J1979Confirmed

Engine torque IMPALA_ENG_TQ

Engine torque IMPALA_ENG_TQ_7E0

Evap system vapor pressure EVAP_VPSAE J1979Confirmed

Evaporative emissions purge IMPALA_EVAPORATIVE

Exhaust gas recirculation duty cycle IMPALA_EGR_DUTY

Exhaust gas recirculation voltage IMPALA_EGR_V

Fuel pressure FPSAE J1979Confirmed

Fuel rail pressure FRPSAE J1979Confirmed

Heated oxygen sensor IMPALA_HEATED_OXYGEN_SENS

Idle air control position IMPALA_IDLE_AIR_CTRL_POS

Ignition input on/off/start IMPALA_IGN_INPUT_ON_OFF

Ignition power mode IMPALA_IGN_POWER_MODE

Injector duty cycle bank 1 IMPALA_INJECTOR_DUTY_CYCLE_BANK_1Confirmed

Injector duty cycle bank 2 IMPALA_INJECTOR_DUTY_CYCLE_BANK_2Confirmed

Injector pulse width, cylinder 1 IMPALA_INJ_WIDTH_CYL_1

Intake air temperature IATSAE J1979Confirmed

Intake air temperature 2 IMPALA_IAT_2

Intake manifold absolute pressure MAPSAE J1979Confirmed

Knock retard IMPALA_KNOCK_RETARDConfirmed

Knock retard, alternate IMPALA_KNOCK_RETARD_ALT

Knock sensor active counter IMPALA_KNOCK_SENS_ACTIVE

Last shift time IMPALA_LAST_SHIFT_TIME

Long term fuel trim (bank 1) LONGFT1SAE J1979Confirmed

Mass airflow sensor IMPALA_MAFConfirmed

MIL cause IMPALA_MIL_CAUSE

MIL status IMPALA_MIL_STAT

Misfire history, cylinder 1 IMPALA_MIS_HISTORY_1

Misfire history, cylinder 2 IMPALA_MIS_HISTORY_2

Misfire history, cylinder 3 IMPALA_MIS_HISTORY_3

Misfire history, cylinder 4 IMPALA_MIS_HISTORY_4

Misfire history, cylinder 5 IMPALA_MIS_HISTORY_5

Misfire history, cylinder 6 IMPALA_MIS_HISTORY_6

Misfires, current, cylinder 1 IMPALA_MISFIRES_C1_CURConfirmed

Misfires, current, cylinder 2 IMPALA_MISFIRES_C2_CURConfirmed

1-2 shift error `IMPALA_1_2_SHIFT_ERROR`

1-2 shift time `IMPALA_1_2_SHIFT_TIME`

2-3 shift error `IMPALA_2_3_SHIFT_ERROR`

2-3 shift time `IMPALA_2_3_SHIFT_TIME`

3-4 shift error `IMPALA_3_4_SHIFT_ERROR`

3-4 shift time `IMPALA_3_4_SHIFT_TIME`

Absolute load value `LOAD_ABS`SAE J1979Confirmed

Active grille cold temperature mode `IMPALA_ACTIVE_GRILLE_COLD_T`

Active grille shutter position `IMPALA_ACTIVE_GRILLE_SHUTTER_POS`

Active grille shutter position command `IMPALA_ACTIVE_GRILLE`

Air conditioning high side pressure `IMPALA_AC_HIGH_SIDE_P`

Air filter life remaining `IMPALA_AIRFILT_LIFE`

Air flow rate from mass air flow sensor `MAF`SAE J1979Confirmed

Air/fuel ratio, commanded `IMPALA_AIR_FUEL_RAT_CMD`

Ambient air temperature 2 `IMPALA_AIR_TEMP_AMBIENT_2`

Axle torque driver requested `IMPALA_AXLE_TQ_DRIVER_REQ`

Balance rate, cylinder 1 `IMPALA_BALANCE_RATE_CYL_1`

Balance rate, cylinder 2 `IMPALA_BALANCE_RATE_CYL_2`

Balance rate, cylinder 3 `IMPALA_BALANCE_RATE_CYL_3`

Balance rate, cylinder 4 `IMPALA_BALANCE_RATE_CYL_4`

Balance rate, cylinder 5 `IMPALA_BALANCE_RATE_CYL_5`

Balance rate, cylinder 6 `IMPALA_BALANCE_RATE_CYL_6`

Barometric pressure `BARO`SAE J1979Confirmed

Barometric pressure, V6 `IMPALA_BAROMETRIC_P_V6`

Cabin A/C high side sensor voltage `IMPALA_CABIN_AC_HIGH_SIDE_V`

Calculated engine load `LOAD_PCT`SAE J1979Confirmed

Calculated engine oil pressure `IMPALA_EOP_CALC`Confirmed

Calculated engine oil temperature `IMPALA_EOT_CALC`Confirmed

Catalyst temperature bank 1, sensor 1 `CATEMP11`SAE J1979Confirmed

Catalyst temperature bank 2, sensor 1 `CATEMP21`SAE J1979Confirmed

Commanded equivalence ratio `EQ_RAT`SAE J1979Confirmed

Commanded evaporative purge `EVAP_PCT`SAE J1979Confirmed

Commanded throttle actuator control `TAC_PCT`SAE J1979Confirmed

Cooling fan motor command `IMPALA_COOLING_FAN_MOTOR_CMD`Confirmed

Cruise control status `IMPALA_CRUISE_CTRL_STAT`

Engine coolant temperature `ECT`SAE J1979Confirmed

Engine oil absolute pressure `IMPALA_EOP_ABS`Confirmed

Engine oil life remaining `IMPALA_EO_LIFE_REMAINING`

Engine oil pressure `IMPALA_EOP`Confirmed

Engine oil pressure `IMPALA_EOP_DA11`

Engine oil pressure 2 `IMPALA_EOP_2`

Engine oil pressure control solenoid valve command `IMPALA_EOP_CTRL_SOLENOID_VALVE_CMD`Confirmed

Engine oil temperature `IMPALA_EOT`

Engine oil temperature 2 `IMPALA_EOT_2`

Engine RPM `RPM`SAE J1979Confirmed

Engine torque `IMPALA_ENG_TQ`

Engine torque `IMPALA_ENG_TQ_7E0`

Evap system vapor pressure `EVAP_VP`SAE J1979Confirmed

Evaporative emissions purge `IMPALA_EVAPORATIVE`

Exhaust gas recirculation duty cycle `IMPALA_EGR_DUTY`

Exhaust gas recirculation voltage `IMPALA_EGR_V`

Fuel pressure `FP`SAE J1979Confirmed

Fuel rail pressure `FRP`SAE J1979Confirmed

Heated oxygen sensor `IMPALA_HEATED_OXYGEN_SENS`

Idle air control position `IMPALA_IDLE_AIR_CTRL_POS`

Ignition input on/off/start `IMPALA_IGN_INPUT_ON_OFF`

Ignition power mode `IMPALA_IGN_POWER_MODE`

Injector duty cycle bank 1 `IMPALA_INJECTOR_DUTY_CYCLE_BANK_1`Confirmed

Injector duty cycle bank 2 `IMPALA_INJECTOR_DUTY_CYCLE_BANK_2`Confirmed

Injector pulse width, cylinder 1 `IMPALA_INJ_WIDTH_CYL_1`

Intake air temperature `IAT`SAE J1979Confirmed

Intake air temperature 2 `IMPALA_IAT_2`

Intake manifold absolute pressure `MAP`SAE J1979Confirmed

Knock retard `IMPALA_KNOCK_RETARD`Confirmed

Knock retard, alternate `IMPALA_KNOCK_RETARD_ALT`

Knock sensor active counter `IMPALA_KNOCK_SENS_ACTIVE`

Last shift time `IMPALA_LAST_SHIFT_TIME`

Long term fuel trim (bank 1) `LONGFT1`SAE J1979Confirmed

Mass airflow sensor `IMPALA_MAF`Confirmed

MIL cause `IMPALA_MIL_CAUSE`

MIL status `IMPALA_MIL_STAT`

Misfire history, cylinder 1 `IMPALA_MIS_HISTORY_1`

Misfire history, cylinder 2 `IMPALA_MIS_HISTORY_2`

Misfire history, cylinder 3 `IMPALA_MIS_HISTORY_3`

Misfire history, cylinder 4 `IMPALA_MIS_HISTORY_4`

Misfire history, cylinder 5 `IMPALA_MIS_HISTORY_5`

Misfire history, cylinder 6 `IMPALA_MIS_HISTORY_6`

Misfires, current, cylinder 1 `IMPALA_MISFIRES_C1_CUR`Confirmed

Misfires, current, cylinder 2 `IMPALA_MISFIRES_C2_CUR`Confirmed

Misfires, current, cylinder 3 `IMPALA_MISFIRES_C3_CUR`Confirmed