trouble after warm up
Thread Starter
7th Gear
Joined: Nov 2012
Posts: 7
Likes: 0
trouble after warm up
I am working on 1987 & the car runs perfect until you shut it off & wait 10 minutes & restart. After restart the car will run irratically sometimes but not always. It can have some performance or can just about keep itself running.
I changed both fuel filters & checked fuel rail pressure which is 35 psi at idle & jumps to 42 when you crack throttle. When I first checked the rails the fuel that came out of the schrader valve looked like it may have been very old or concentrated fuel injector cleaner. I checked the distributor
and all looks good inside.
The gas tank doesn't seem to shush when you take off the cap.
If you get stuck because of very poor performance & take off the negative battery lead for about 10 minutes it will start & run perfect until the next time you shut it off.
Any suggestions??
Steve
I changed both fuel filters & checked fuel rail pressure which is 35 psi at idle & jumps to 42 when you crack throttle. When I first checked the rails the fuel that came out of the schrader valve looked like it may have been very old or concentrated fuel injector cleaner. I checked the distributor
and all looks good inside.
The gas tank doesn't seem to shush when you take off the cap.
If you get stuck because of very poor performance & take off the negative battery lead for about 10 minutes it will start & run perfect until the next time you shut it off.
Any suggestions??
Steve
Thread Starter
7th Gear
Joined: Nov 2012
Posts: 7
Likes: 0
Trouble after warm up
I am working on 1987 & the car runs perfect until you shut it off & wait 10 minutes & restart. After restart the car will run irracticaly sometimes but not always. It can have some performance or can just about keep itself running.
I changed both fuel filters & checked fuel rail pressure which is 35 psi at idle & jumps to 42 when you crack throttle. When I first checked the rails the fuel that came out of the schrader valve looked like it may have been very old or concentrated fuel injector cleaner. I checked the distributor
and all looks good inside.
The gas tank doesn't seem to shush when you take off the cap.
If you get stuck because of very poor performance & take off the negative battery lead for about 10 minutes it will start & run perfect until the next time you shut it off.
Any suggestions??
Steve
I changed both fuel filters & checked fuel rail pressure which is 35 psi at idle & jumps to 42 when you crack throttle. When I first checked the rails the fuel that came out of the schrader valve looked like it may have been very old or concentrated fuel injector cleaner. I checked the distributor
and all looks good inside.
The gas tank doesn't seem to shush when you take off the cap.
If you get stuck because of very poor performance & take off the negative battery lead for about 10 minutes it will start & run perfect until the next time you shut it off.
Any suggestions??
Steve
Safety Car
Joined: Aug 2002
Posts: 3,842
Likes: 230
From: SANTA CRUZ CA
If the 'check engine' light is not working, you can still down load codes:
http://corvettephotographs.com/c4vettes/codes.htm
http://www.corvettephotographs.com/c4vettes/ecm.htm
http://corvettephotographs.com/c4vettes/codes.htm
http://www.corvettephotographs.com/c4vettes/ecm.htm
