I have an 85 gslse, I do have a vacuum leak somewhere that I know about but I am not sure if it has anything to do with how my car wont idle while the engine is cold. When I start it up I have to keep my foot on the gas to keep it going until the engine is warmed up. How can I fix this?

 

fix your vacuum leak.

 

why would the vacuum leak only matter that much when its cold but not when its warm?

 

if you already know you have a vac leak, fix it. THey can cause all types of problems. When you fix it and if you still have the issue, then its time to start looking elsewhere. Until you fix the vac leak your just chasing your tail.

 

hmm good point. well i fixed it. my idles chilling between 800 and 900 now. Not perfect but the best its been since i bought it. Still at start up the car refuses to stay on. So what could be it now?