porschedude

does anybody know any info on the CIS fuel injection system? preferribly about how to adjust the air/fuel mixture? car runs rough at idle and great when under throttle. tried to have it smogged yesterday and it wouldn't pass due to too much oxygen in the exhaust. help me PLEASE

Lee

rally4s

Two places:
- with 3mm allen wrench by fuel distributor (hight of air flow sensing plate) - same on all CIS systems,
- idle adjustment screw on throttle body.

ralleyquattro

You'll find couple of factory documents on my main page
http://www.quattro.ca/
One is the introduction which describes how it all works, the other one is maintenance document which shows how things are adjusted.

Cheers