Engine Stalls or Idles Rough

Check the following:

1. Vacuum (intake air) leak

2. Air flow sensor flap binding or faulty [1]

3. Inadequate fuel delivery to engine

4. Blocked fuel filter

5. Idle air stabilizer valve faulty [1]

6. Low fuel pressure

7. Fuel injection control unit 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.