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Chevrolet Silverado 1500

Fuel parameters

The Chevrolet Silverado 1500 has 30 fuel parameters.

● Confirmed◆ In testing○ Supported× Not supported

How to read a parameter card

Fuel injection, cylinder 1 SILVERADO1500_FUEL_INJECTION_C1Confirmed

  • Request22 20 AC
  • Service 22DID 20AC
  • ModuleDA11 → 2AF111
  • Every1 s
  • Testing for 1999 to 2022, 2024

Example reply from a 2026 Chevrolet Silverado 1500.

Bits 0 to 15 of the reply, 16 bits.

0x0000 = 0 → (0 × 10 ÷ 10000) = 0 ms

Formula
(val × 10 ÷ 10000)
Range
0 to 65.535 ms
Unit
ms

Confirmed for 2023, 2025 to 2026. In testing for 1999 to 2007, 2009, 2011, 2013 to 2014. Not supported for 2008, 2010, 2012, 2015 to 2022, 2024.

  1. The parameter's name and its ID in the OBDb. Confirmed shows when a response from a real car confirms the parameter.
  2. The clutch mark shows a Connectable, a parameter that Pelican surfaces in its interface.
  3. The service and PID/DID asked for, the control module it's sent to, and how often Pelican asks.
  4. The reply's bytes. The parameter's bytes are blue. Bytes for other parameters in the same reply are grayed out. Hover over a byte to see the parameter it represents.
  5. Where the parameter is in the response, and how Pelican converts the raw value into a value.
  6. A real reply, decoded. The raw value comes first, then the reading.
  7. Which model years have tested this parameter.

Alcohol fuel percentage ALCH_PCTSAE J1979Confirmed

Indicates the percentage of alcohol contained in ethanol or methanol fuels, if used. For example, ethanol fuel (E85) normally contains 85% ethanol, in which case this parameter will display 85%

  • Request01 52
  • Service 01PID 52
  • Module7E0 → 7E8
  • Every1 s

Bits 0 to 7 of the reply, 8 bits.

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

Confirmed for 2010, 2014. Supported for 2016 to 2017.

Commanded Fuel Rail Pressure A FRP_A_CMDSAE J1979Confirmed

Displays commanded fuel rail pressure when the reading is referenced to atmosphere (gage pressure)

  • Request01 6D
  • Service 01PID 6D
  • Module7E0 → 7E8
  • Every250 ms

Bits 8 to 23 of the reply, 16 bits.

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

Confirmed for 2014, 2016, 2018, 2020 to 2023, 2025 to 2026. Supported for 2015, 2019.

Commanded Fuel Rail Pressure B FRP_B_CMDSAE J1979Confirmed

Displays commanded fuel rail pressure when the reading is referenced to atmosphere (gage pressure)

  • Request01 6D
  • Service 01PID 6D
  • Module7E0 → 7E8
  • Every250 ms

Bits 48 to 63 of the reply, 16 bits.

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

Confirmed for 2014, 2016, 2018, 2020 to 2023, 2025 to 2026. Supported for 2015, 2019.

Engine exhaust flow rate EXH_RATESAE J1979Confirmed

  • Request01 9E
  • Service 01PID 9E
  • Module7E0 → 7E8
  • Every250 ms

Bits 0 to 15 of the reply, 16 bits.

Formula
(val ÷ 5)
Range
0 to 13107 kg/h
Unit
kg/h

Confirmed for 2020 to 2023, 2025 to 2026. Supported for 2019, 2024.

Engine fuel rate FUEL_RATESAE J1979Confirmed

Measured in units per hour

Pelican can show this parameter as the fuel rate.

  • Request01 5E
  • Service 01PID 5E
  • Module7E0 → 7E8
  • Every250 ms

Bits 0 to 15 of the reply, 16 bits.

Formula
(val ÷ 20)
Range
0 to 3212.75 L/h
Unit
L/h

Confirmed for 2020 to 2021, 2023, 2025 to 2026. Supported for 2024.

Engine fuel rate (alternate) FUEL_RATE_ALTSAE J1979Confirmed

  • Request01 9D
  • Service 01PID 9D
  • Module7E0 → 7E8
  • Every250 ms

Bits 0 to 15 of the reply, 16 bits.

Formula
(val ÷ 50)
Range
0 to 1310.7 g/s
Unit
g/s

Confirmed for 2019 to 2023, 2025 to 2026. Supported for 2024.

Fuel injection, cylinder 1 SILVERADO1500_FUEL_INJECTION_C1Confirmed

  • Request22 20 AC
  • Service 22DID 20AC
  • ModuleDA11 → 2AF111
  • Every1 s
  • Testing for 1999 to 2022, 2024

Example reply from a 2026 Chevrolet Silverado 1500.

Bits 0 to 15 of the reply, 16 bits.

0x0000 = 0 → (0 × 10 ÷ 10000) = 0 ms

Formula
(val × 10 ÷ 10000)
Range
0 to 65.535 ms
Unit
ms

Confirmed for 2023, 2025 to 2026. In testing for 1999 to 2007, 2009, 2011, 2013 to 2014. Not supported for 2008, 2010, 2012, 2015 to 2022, 2024.

Fuel injection, cylinder 2 SILVERADO1500_FUEL_INJECTION_C2

  • Request22 11 94
  • Service 22DID 1194
  • ModuleDA11 → 2AF111
  • Every1 s
  • Testing

Bits 0 to 15 of the reply, 16 bits.

Formula
(val × 1000 ÷ 65535)
Range
0 to 1000 ms
Unit
ms

In testing for 1999 to 2007, 2009, 2011, 2013 to 2014. Not supported for 2008, 2010, 2012, 2015 to 2026.

Fuel injection, cylinder 3 SILVERADO1500_FUEL_INJECTION_C3

  • Request22 11 95
  • Service 22DID 1195
  • ModuleDA11 → 2AF111
  • Every1 s
  • Testing

Bits 0 to 15 of the reply, 16 bits.

Formula
(val × 1000 ÷ 65535)
Range
0 to 1000 ms
Unit
ms

In testing for 1999 to 2007, 2009, 2011, 2013 to 2014. Not supported for 2008, 2010, 2012, 2015 to 2026.

Fuel injection, cylinder 4 SILVERADO1500_FUEL_INJECTION_C4

  • Request22 11 96
  • Service 22DID 1196
  • ModuleDA11 → 2AF111
  • Every1 s
  • Testing

Bits 0 to 15 of the reply, 16 bits.

Formula
(val × 1000 ÷ 65535)
Range
0 to 1000 ms
Unit
ms

In testing for 1999 to 2007, 2009, 2011, 2013 to 2014. Not supported for 2008, 2010, 2012, 2015 to 2026.

Fuel injection, cylinder 5 SILVERADO1500_FUEL_INJECTION_C5

  • Request22 11 97
  • Service 22DID 1197
  • ModuleDA11 → 2AF111
  • Every1 s
  • Testing

Bits 0 to 15 of the reply, 16 bits.

Formula
(val × 1000 ÷ 65535)
Range
0 to 1000 ms
Unit
ms

In testing for 1999 to 2007, 2009, 2011, 2013 to 2014. Not supported for 2008, 2010, 2012, 2015 to 2026.

Fuel injection, cylinder 6 SILVERADO1500_FUEL_INJECTION_C6

  • Request22 11 98
  • Service 22DID 1198
  • ModuleDA11 → 2AF111
  • Every1 s
  • Testing

Bits 0 to 15 of the reply, 16 bits.

Formula
(val × 1000 ÷ 65535)
Range
0 to 1000 ms
Unit
ms

In testing for 1999 to 2007, 2009, 2011, 2013 to 2014. Not supported for 2008, 2010, 2012, 2015 to 2026.

Fuel injection, cylinder 7 SILVERADO1500_FUEL_INJECTION_C7

  • Request22 11 99
  • Service 22DID 1199
  • ModuleDA11 → 2AF111
  • Every1 s
  • Testing

Bits 0 to 15 of the reply, 16 bits.

Formula
(val × 1000 ÷ 65535)
Range
0 to 1000 ms
Unit
ms

In testing for 1999 to 2007, 2009, 2011, 2013 to 2014. Not supported for 2008, 2010, 2012, 2015 to 2026.

Fuel injection, cylinder 8 SILVERADO1500_FUEL_INJECTION_C8Confirmed

  • Request22 20 B3
  • Service 22DID 20B3
  • ModuleDA11 → 2AF111
  • Every1 s
  • Testing for 1999 to 2022, 2024

Example reply from a 2026 Chevrolet Silverado 1500.

Bits 0 to 15 of the reply, 16 bits.

0x0000 = 0 → (0 × 10 ÷ 10000) = 0 ms

Formula
(val × 10 ÷ 10000)
Range
0 to 65.535 ms
Unit
ms

Confirmed for 2023, 2025 to 2026. In testing for 1999 to 2007, 2009, 2011, 2013 to 2014. Not supported for 2008, 2010, 2012, 2015 to 2022, 2024.

Fuel Rail Pressure A FRP_ASAE J1979Confirmed

Displays fuel rail pressure when the reading is referenced to atmosphere (gage pressure).

  • Request01 6D
  • Service 01PID 6D
  • Module7E0 → 7E8
  • Every250 ms

Bits 24 to 39 of the reply, 16 bits.

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

Confirmed for 2014, 2016, 2018, 2020 to 2023, 2025 to 2026. Supported for 2015, 2019.

Fuel Rail Pressure B FRP_BSAE J1979Confirmed

Displays fuel rail pressure when the reading is referenced to atmosphere (gage pressure).

  • Request01 6D
  • Service 01PID 6D
  • Module7E0 → 7E8
  • Every250 ms

Bits 64 to 79 of the reply, 16 bits.

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

Confirmed for 2014, 2016, 2018, 2020 to 2023, 2025 to 2026. Supported for 2015, 2019.

Fuel Rail Temperature A FRT_ASAE J1979Confirmed

  • Request01 6D
  • Service 01PID 6D
  • Module7E0 → 7E8
  • Every250 ms

Bits 40 to 47 of the reply, 8 bits.

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

Confirmed for 2014, 2016, 2018, 2020 to 2023, 2025 to 2026. Supported for 2015, 2019.

Fuel Rail Temperature B FRT_BSAE J1979Confirmed

  • Request01 6D
  • Service 01PID 6D
  • Module7E0 → 7E8
  • Every250 ms

Bits 80 to 87 of the reply, 8 bits.

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

Confirmed for 2014, 2016, 2018, 2020 to 2023, 2025 to 2026. Supported for 2015, 2019.

Fuel system 1 status FUELSYS1SAE J1979Confirmed

  • Request01 03
  • Service 01PID 03
  • Module7E0 → 7E8
  • Every250 ms

Bits 0 to 7 of the reply, 8 bits.

Unit
Named states
States
Raw valueStateMeaning
0OFFEngine is off
1OLOpen loop - has not yet satisfied conditions to go closed loop
2CLClosed loop - using oxygen sensor(s) as feedback for fuel control
4OL-DriveOpen loop due to driving conditions (e.g. power enrichment, deceleration enleanment)
8OL-FaultOpen loop - due to detected system fault
16CL-FaultClosed loop, but fault with at least one oxygen sensor - may be using single oxygen sensor for fuel control
32OL B2Open loop - has not yet satisfied conditions to go closed loop (Bank 2)
64OL-Drive B2Open loop due to driving conditions (Bank 2) (e.g. power enrichment, deceleration enleanment, cylinder deactivation)
128OL-Fault B2Open loop - due to detected system fault (Bank 2)

Confirmed for 2010, 2014, 2016, 2018, 2020 to 2023. Supported for 2008, 2012, 2015, 2017, 2019, 2024.

Fuel system 2 status FUELSYS2SAE J1979Confirmed

  • Request01 03
  • Service 01PID 03
  • Module7E0 → 7E8
  • Every250 ms

Bits 8 to 15 of the reply, 8 bits.

Unit
Named states
States
Raw valueStateMeaning
0OFFEngine is off
1OLOpen loop - has not yet satisfied conditions to go closed loop
2CLClosed loop - using oxygen sensor(s) as feedback for fuel control
4OL-DriveOpen loop due to driving conditions (e.g. power enrichment, deceleration enleanment)
8OL-FaultOpen loop - due to detected system fault
16CL-FaultClosed loop, but fault with at least one oxygen sensor - may be using single oxygen sensor for fuel control
32OL B2Open loop - has not yet satisfied conditions to go closed loop (Bank 2)
64OL-Drive B2Open loop due to driving conditions (Bank 2) (e.g. power enrichment, deceleration enleanment, cylinder deactivation)
128OL-Fault B2Open loop - due to detected system fault (Bank 2)

Confirmed for 2010, 2014, 2016, 2018, 2020 to 2023. Supported for 2008, 2012, 2015, 2017, 2019, 2024.

Fuel tank level FLISAE J1979Confirmed

Pelican can show this parameter as the fuel tank level.

  • Request01 2F
  • Service 01PID 2F
  • Module7E0 → 7E8
  • Every1 s

Bits 0 to 7 of the reply, 8 bits.

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

Confirmed for 2008, 2010, 2012, 2014 to 2016, 2018 to 2026. Supported for 2017.

Fuel temperature SILVERADO1500_FUEL_TConfirmed

  • Request22 32 18
  • Service 22DID 3218
  • ModuleDA11 → 2AF111
  • Every1 s
  • Testing for 1999 to 2022, 2024

Example reply from a 2026 Chevrolet Silverado 1500.

Bits 0 to 7 of the reply, 8 bits.

0x34 = 52 → (52 × 50 ÷ 100) = 26 °C

Formula
(val × 50 ÷ 100)
Range
0 to 127.5 °C
Unit
°C

Confirmed for 2023, 2025 to 2026. In testing for 1999 to 2007, 2009, 2011, 2013 to 2014. Not supported for 2008, 2010, 2012, 2015 to 2022, 2024.

Total fuel consumption rate SILVERADO1500_TOTAL_FUEL_CONSUMPTION_RATEConfirmed

  • Request22 00 9D
  • Service 22DID 009D
  • ModuleDA11 → 2AF111
  • Every1 s
  • Testing for 1999 to 2021

Example reply from a 2026 Chevrolet Silverado 1500.

Bits 0 to 15 of the reply, 16 bits.

0x0008 = 8 → (8 × 200 ÷ 10000) = 0.16 g/s

Formula
(val × 200 ÷ 10000)
Range
0 to 1310.7 g/s
Unit
g/s

Confirmed for 2022 to 2026. In testing for 1999 to 2007, 2009, 2011, 2013 to 2014. Not supported for 2008, 2010, 2012, 2015 to 2021.

Vehicle fuel rate VFUEL_RATESAE J1979Confirmed

  • Request01 9D
  • Service 01PID 9D
  • Module7E0 → 7E8
  • Every250 ms

Bits 16 to 31 of the reply, 16 bits.

Formula
(val ÷ 50)
Range
0 to 1310.7 g/s
Unit
g/s

Confirmed for 2019 to 2023, 2025 to 2026. Supported for 2024.

Fuel › Internal

Commanded Fuel Rail Pressure A data supported? FRP_A_CMD_SUPSAE J1979Confirmed

  • Request01 6D
  • Service 01PID 6D
  • Module7E0 → 7E8
  • Every250 ms

Bit 7 of the reply.

Formula
val
Range
0 to 1
Unit
No or yes

Confirmed for 2014, 2016, 2018, 2020 to 2023, 2025 to 2026. Supported for 2015, 2019.

Commanded Fuel Rail Pressure B data supported? FRP_B_CMD_SUPSAE J1979Confirmed

  • Request01 6D
  • Service 01PID 6D
  • Module7E0 → 7E8
  • Every250 ms

Bit 4 of the reply.

Formula
val
Range
0 to 1
Unit
No or yes

Confirmed for 2014, 2016, 2018, 2020 to 2023, 2025 to 2026. Supported for 2015, 2019.

Fuel Rail Pressure A data supported? FRP_A_SUPSAE J1979Confirmed

  • Request01 6D
  • Service 01PID 6D
  • Module7E0 → 7E8
  • Every250 ms

Bit 6 of the reply.

Formula
val
Range
0 to 1
Unit
No or yes

Confirmed for 2014, 2016, 2018, 2020 to 2023, 2025 to 2026. Supported for 2015, 2019.

Fuel Rail Pressure B data supported? FRP_B_SUPSAE J1979Confirmed

  • Request01 6D
  • Service 01PID 6D
  • Module7E0 → 7E8
  • Every250 ms

Bit 3 of the reply.

Formula
val
Range
0 to 1
Unit
No or yes

Confirmed for 2014, 2016, 2018, 2020 to 2023, 2025 to 2026. Supported for 2015, 2019.

Fuel Temperature A data supported? FRT_A_SUPSAE J1979Confirmed

  • Request01 6D
  • Service 01PID 6D
  • Module7E0 → 7E8
  • Every250 ms

Bit 5 of the reply.

Formula
val
Range
0 to 1
Unit
No or yes

Confirmed for 2014, 2016, 2018, 2020 to 2023, 2025 to 2026. Supported for 2015, 2019.

Fuel Temperature B data supported? FRT_B_SUPSAE J1979Confirmed

  • Request01 6D
  • Service 01PID 6D
  • Module7E0 → 7E8
  • Every250 ms

Bit 2 of the reply.

Formula
val
Range
0 to 1
Unit
No or yes

Confirmed for 2014, 2016, 2018, 2020 to 2023, 2025 to 2026. Supported for 2015, 2019.

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