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Home >> Pontiac >> 2008 >> Torrent GXP, AWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 5 (Engine Controls And Fuel - 3.4L - Troubleshooting & Diagnosis) >> Engine Cranks but Does Not Run >> Circuit/System Testing

Circuit/System Testing

WARNING: This page is about a different variant/trim than selected.
  1. Crank the engine for up to 30 seconds.
  2. Observe the vehicle DTC information with a scan tool.
    • If any of the following DTCs are set, refer to Diagnostic Trouble Code (DTC) List - Vehicle : P0201-P0206, P0335, P0336, P0351-P0353, P0601, P0602, P0604, P0606, P0607, P060D, P062F, P0685, P0689, P0690, P1516, P1682, P2610.
  3. Verify the following scan tool parameters indicate OK when the engine is cranked:
    • Cylinder 1-6 Injector Circuit Short to Ground Test Status
    • Cylinder 1-6 Injector Circuit Open Test Status
  4. Verify the scan tool parameters Cylinder 1-6 Injector Circuit Short to Volts Test Status change from Not Run to OK when the engine is cranked.
  5. Observe the engine speed parameter while cranking the engine.
    • If engine RPM is not indicated, refer to DTC P0335 .
  6. Install a J 26792  . See Special Tools .
  7. Crank the engine for 15 seconds. Spark should be observed from the J 26792  . See Special Tools .
  8. With the ignition ON and the engine OFF, test the fuses that are supplied by the powertrain relay for voltage.
    9. IMPORTANT: Additional DTCs may set when using the fuel pump output control.
  9. Command the fuel pump ON and OFF. The fuel pump should energize when commanded ON, and de-energize when commanded OFF.
  10. Turn OFF the ignition.
  11. Install the CH-48027  . See Special Tools . Turn ON the ignition and command the fuel pump ON while observing the CH-48027  . See Special Tools . The fuel pressure should be between 384-425 kPa (56-62 psi).
  12. Inspect for the following conditions:
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