Engine Idles Too Fast

*** UPDATED BY TSB #258901 DATED JULY 1989

Check the following:

1. Auxiliary air regulator hoses have cuts or holes [1]

2. Accelerator pedal or throttle cable binding

3. Throttle valve binding

4. Auxiliary air regulator faulty

5. Idle boost valve faulty

6. Air leaking past throttle valve

[1] Refer to TSB #258901 dated July 1989 for hose routing update

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.