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Home >> Chevrolet >> 2020 >> Camaro SS, 2D Coupe, Automatic Trans >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 24 (Engine Controls And Fuel - 2.0L (LTG) - Diagnostic Information And Procedures (2 Of 2) And Symptoms) >> Diagnostic Information and Procedures >> Fuel Rail Pressure Sensor Test >> Circuit/System Testing

Circuit/System Testing

WARNING: This page is about a different variant/trim than selected.
  1. Perform the following procedure/test: Fuel Pressure Relief
  2. Install any previously removed components.
  3. Install - EN-37287 Fuel Line Shut-Off Adapter @Fuel Feed Pipe
  4. Open the valve on the tool: EN-37287 Fuel Line Shut-Off Adapter
  5. Ignition - On / Vehicle - In Service Mode
  6. Perform the scan tool control function: Fuel Pump Enable - On - Command the function On several times.
  7. Verify the following parameters are within 68. 9 kPa (10 PSI) of each other: Fuel Pressure Sensor & Fuel Rail Pressure Sensor
    • If not within 68. 9 kPa (10 PSI) of each other 
    1. Ignition/Vehicle - Off
    2. Close the valve on the tool: EN-37287 Fuel Line Shut-Off Adapter
    3. Start and idle the engine until it stalls due to lack of fuel. - Repeat - 2 times
    4. Ignition/Vehicle - Off
    5. Remove the component: B47B Fuel Rail Pressure Sensor - Refer to: Fuel Injection Fuel Rail Fuel Pressure Sensor Replacement
    6. Connect the electrical connector: @B47B Fuel Rail Pressure Sensor
    7. Ignition - On / Vehicle - In Service Mode
    8. Verify the scan tool parameter: Fuel Rail Pressure Sensor = -20. 7 to 20. 7 kPa (-3 to 3 PSI)
      • If not between -20. 7 and 20. 7 kPa (-3 and 3 PSI) - Replace the component: B47B Fuel Rail Pressure Sensor
      • If between -20. 7 and 20. 7 kPa (-3 and 3 PSI) - Replace the component: B47 Fuel Pressure Sensor
    9. All OK.
    • Go to next step: If within 68. 9 kPa (10 PSI) of each other 
  8. All OK.
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