Idle Speed - Fluctuation Troubleshooting: Overview
90audi01Applies To: Audi 80/90 1988-1989 4 cylinder (Engine Code 3A)
Subject: Diagnosis and repair of idle speed fluctuation (with engine warm)
(Supercedes Product Circular 89-01, Dated October 20, 1989)
Number: Group:
89-05
25
December 22, 1989
Fuel system
This circular describes the diagnostic and repair procedures for eliminating the causes of idle speed fluctuation.
^ check engine basics
^ Idle speed, CO mA, Ignition timing, adjust if necessary
^ perform vehicle self-diagnosis
^ see Repair Group 25 of Repair microfiche for additional information