Corvette Running Rich
Thread Starter
Instructor
Joined: Nov 2006
Posts: 166
Likes: 0
From: Madison WI
Corvette Running Rich
My 1985 corvette had a bad tps sensor which i replaced. After i replaced it my car seemed to run pretty rich. I adjusted the tps to the right setting the 5.17v i think. I then adjusted down to about three volts just to see if that would help it to run leaner which it did with out hurting much top end performance. Obviously something else must be wrong since in order to get in to run a little bit leaner i have to over adjust the tps. Could this be from a plugged catalytic converter or something else? thanks,
tyler
tyler
Le Mans Master
Joined: May 2004
Posts: 5,866
Likes: 60
From: Hellinois
Finalist 2020 C4 of the Year - Modified
Check the connection on your MAF, I just had the same thing on my 85 while doing some work on it. The connection may be dirty or just pulled out a little ways like mine was.
Le Mans Master
Joined: May 2004
Posts: 5,866
Likes: 60
From: Hellinois
Finalist 2020 C4 of the Year - Modified
Oops, I didn't read too good, your TPS voltage is way off. Try .54-.56 for starters. I had an off idle bog which was fixed by going as high as
.62 volts.
.62 volts.
