Engine Misses or Hesitates Under Load

*** UPDATED BY TSB #289002 DATED MARCH 1990

*** UPDATED BY TSB #289101 DATED OCT. 1991

Check the following:

1. Spark plug angle connectors [1]

2. Distributor cap for carbon tracking [2]

3. Vacuum (intake air) leaks

4. Fuel injector(s) clogged

5. Fuel pressure incorrect

6. Oxygen sensor system faulty [3]

7. Fuel leak(s)

8. Coolant temperature sensor and wiring [3]

[1] Refer to TSB #289002 for parts update

[2] Refer to TSB #289101 for parts update

[3] 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.