California

A visual inspection for loose, disconnected, damaged, or misrouted wires and/or hoses should be made prior to diagnosing or servicing the fuel injection system. A thorough visual inspection will help find these faults and save unnecessary testing and diagnostic time.

VISUAL INSPECTION

1. Check the ignition coil electrical connections.

Solenoid Mounting:

2. Check the canister purge solenoid vacuum and electrical connections.
3. Check the wastegate solenoid vacuum and electrical connections.
4. Check the EGR solenoid vacuum and electrical connections.

Manifold Absolute Pressure (MAP) Sensor:

5. Check the MAP sensor vacuum and electrical connections.
6. Check the vacuum hoses and connections between the vacuum source and canister purge, wastegate, EGR, and barometric read solenoids.

Vapor Canister:

7. Check the hose connections at the vapor canister.
8. Check the alternator wiring connections and belt condition.
9. Check secondary ignition cable routing and connections.

Electrical Connections:

10. Check the distributor electrical connections.
11. Check the oil pressure sending unit electrical connection.
12. Check the radiator fan electrical connections.

Coolant Temperature Sensor:

13. Check the coolant temperature sensor electrical connections.
14. Check the battery ground connections at the engine.

Engine Temperature Sensor:

15. Check the engine temperature sensor electrical connection.
16. Check the power brake booster and speed control connections.
17. Check the engine harness to main harness electrical connections.

Neutral Safety Switch:

18. Check the neutral safety switch electrical connection.

Relay Location/Identification:

19. Check all electrical relay connections.
20. Check battery terminal connections for cleanliness and tightness.

Single Board Engine Controller (SBEC):

21. Check the 60 way engine controller connector for proper seating.

Throttle Position Sensor (TPS)/Automatic Idle Speed (AIS) Motor:

22. Check the automatic idle speed motor electrical connection.
23. Check the throttle position sensor electrical connection.
24. Check the hose connections at the throttle body.
25. Check all vacuum lines at the intake manifold for proper routing and connections.
26. Check the vacuum hose and connections between the vacuum source and the fuel pressure regulator.
27. Check the PCV valve hose for connections and condition.
28. Check the fuel injector and detonation sensor electrical connections.
29. Check the oxygen sensor electrical connection.
30. Check the engine ground strap between the intake manifold and dash panel for condition and connections.
31. Check the vacuum and pressure connections on the turbo.

Vehicle Speed Sensor (VSS):

32. Check the distance sensor electrical connections.
33. Check the connections at the fuel pump.