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Home >> Saturn >> 2002 >> LW300 >> Repair and Diagnosis >> Engine Performance >> Testing & Diagnosis >> Engine Control System - Basic Diagnostic Procedures >> No-Start Diagnosis >> No Start - Engine Cranks Okay (3.8L) >> General Inspection (VIN K - Park Avenue)

General Inspection (VIN K - Park Avenue)

  1. If diagnostic system check has already been performed, go to next step. If diagnostic system check has not been performed, go to DIAGNOSTIC SYSTEM CHECK - ENGINE CONTROLS in appropriate SELF-DIAGNOSTICS article.
  2. Turn ignition on, with engine off. Using scan tool, observe the DTC information. Is DTC P0230, P0336, P0341, P0601 or P0602 set? If yes, diagnose affected DTC(s). See appropriate SELF-DIAGNOSTICS article. If no, go to next step.
  3. Monitor engine RPM parameter on scan tool, while engine is cranking. Does the engine RPM parameter display cranking RPM? If yes, go to next step. If no, go to IGNITION SYSTEM DIAGNOSIS (ALL MODELS) .
  4. Using scan tool, command fuel pump relay on. Does fuel pump run? If yes, go to next step. If no, go to FUEL PUMP ELECTRICAL CIRCUIT (EXCEPT VIN K - GRAND PRIX) .
  5. Turn ignition off. Install Fuel Pressure Gauge (J-34730-1A). Turn ignition on, with engine off. Using scan tool, command the fuel pump relay on. Is fuel pressure within 53-59 psi (3.7-4.1 kg/cm2 ) while fuel pump is operating? If yes, go to next step. If no, go to FUEL SYSTEM DIAGNOSIS (ALL MODELS) .
  6. Turn ignition off. Disconnect a fuel injector connector. Install Fuel Injector Test Light (J-34730-405) to the injector connector. Attempt to start engine. Does test light blink while engine is cranking? If yes, go to next step. If no, go to FUEL INJECTOR CIRCUIT DIAGNOSIS (VIN K & 1 - BONNEVILLE, GRAND PRIX, LESABRE & PARK AVENUE) .
  7. Turn ignition off. Disconnect a spark plug wire. Install Spark Tester (J-26792) to spark plug wire. Attempt to start engine. Does spark tester spark? If yes, go to next step. If no, go to IGNITION SYSTEM DIAGNOSIS (ALL MODELS) .
  8. Check for collapsed air intake duct, restricted air filter element, fouled spark plugs, engine mechanical problem or restricted exhaust system. Check for faulty Engine Coolant Temperature (ECT) sensor, Manifold Absolute Pressure (MAP) sensor or a stuck Throttle Position (TP) sensor. Repair or replace as necessary. After repairs, go to next step.
  9. Clear DTCs with a scan tool. Attempt to start engine. Does engine start and continue to operate? If yes, go to next step. If no, go to step  2.
  10. Operate engine at idle. Allow engine to reach operating temperature. Observe DTC information on scan tool. Are any DTCs displayed? If yes, diagnose affected DTC(s). See appropriate SELF-DIAGNOSTICS article. If no, system is okay.
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