Engine Stalls or Idles Rough

Check the following:

1. Carbon canister solenoid valves [1]

2. Fuel leaks

3. Vacuum (intake air) leaks

4. Oxygen sensor system faulty [1]

5. Vacuum (intake air) leaks

6. Improper warm-up or acceleration enrichment [1]

7. Cold start valve leaking

8. Idle air stabilizer valve faulty [1]

9. Fuel injector(s) leaking

10. Control plunger in fuel distributor binding

11. Air flow sensor plate potentiometer and wiring [1]

12. Fuel pressure incorrect

13. Coolant temperature sensor and wiring [1]

14. Throttle switch or throttle valve potentiometer faulty [1]

[1] For testing procedure refer to, COMPUTERIZED ENGINE CONTROLS.

NOTE: After each symptom, the sub-system that could be the source of the symptom are listed and should be checked in the order they are listed, beginning with #1.