89 TPI idle problems, please help
Thread Starter
Racer
Joined: May 2002
Posts: 444
Likes: 3
From: Austin TX
89 TPI idle problems, please help
I just bought this 89 and it seemed to idle ok, just a little low. Then it got to where it wouldn't even stay running. So I turned the idle up and got it idling fine. The next day I started it and it was way too high. So I backed it off, next day it was way to low!!!!! No service engine codes, please advise, Thanks :banghead:
Le Mans Master
Joined: Dec 1999
Posts: 8,540
Likes: 1
From: And on the fifth day, subpoenas were served to Obama senior staff
Re: 89 TPI idle problems, please help (scarabexc)
You cannot adjust the idle on an L-98 with the screw, it is set by the ecm.
Start by reading the tech tips under tools above ^.
I would remove and completely clean the TB, I would replace the IAC while you are there. Use a new gasket and re-torque the TB bolts a couple times after heat cycles.
Read the tech tips!
Pete
Start by reading the tech tips under tools above ^.
I would remove and completely clean the TB, I would replace the IAC while you are there. Use a new gasket and re-torque the TB bolts a couple times after heat cycles.
Read the tech tips!
Pete
