× Auto Repair Pros Member Benefits TechHelp Knowledge Base Forums Resources My iATN Marketplace Chat Pricing About Us Join Industry Sponsors Video Members Only Repair Shops Auto Pro Careers Auto Pro Reviews
Join Now
International Automotive Technicians Network
1988 Audi 90 1.8L Poor Idle Quality, Stall
Posted to European Driveability on 9/20/2000

When starting engine all is OK. After the engine is warmed up & you decel,

the idle control signal from the ECU drops out (no more ground control from the ECU to the idle valve). The signal will only resume if the key switch is cycled off & on. We've tried a ...

 
Message Closed w/FIX

car Vehicle Data

1988 Audi 90

VIN WAUBG0895J
Engine1.8 L / 4 cyl
EmissionsFed
SymptomsPoor Idle Quality, Stall
OccursOn Decel, After Decel
Misc.4Door
Message Closed w/FIX

car Vehicle Data

1988 Audi 90

VIN WAUBG0895J
Engine1.8 L / 4 cyl
EmissionsFed
SymptomsPoor Idle Quality, Stall
OccursOn Decel, After Decel
Misc.4Door