Rough running while cold
1988 cabriolet 1.8 litre.
No power. Began happening very irregularly after running it hard - shutting down and
then getting into it an hour later. Could almost predict it - idle speed would drop from
1200 to 1000. After 10 min. it would correct itself. Now it is happening every start up
in the morning.
Is this the cold start valve?
Is the car running rough? A 1988 Cabriolet should have Digifant fuel injection, which would have a coolant temperature sensor that tells the ECU to enrich the fuel mixture. I don't believe that this sytem uses a "cold start valve". The earlier models, with CIS-E fuel injection, had a fifth fuel injector, on the intake manifold, to aid in cold starts.
Search Volkswagen Cabriolet Questions
Volkswagen Cabriolet Experts
Related Models For Sale
Used Cars For Sale