high idle in cold weather
Thread Starter
Member
Joined: Jul 2009
Posts: 155
Likes: 1
Car: 1990 RS Camaro
Engine: 400 sbc throttle body
Transmission: world class t5 manual
Axle/Gears: 3.73's, Detroit TrueTrac
high idle in cold weather
hi i will give you a little info about the car first. 90 rs camaro, swapped in a supped up 350 and had the chip re tuned to the new motor. as well as a high preformance tbi. the past 4 months it has been idling high around 1800 rpms when it has warmed up and i am stitting at a stop light. and it mostly does this when it is cold out. like below 40 degrees F. whats going on? tried adjusting the idle screw in the tbi and i still cant get the rpms down. thanks
Senior Member
Joined: Sep 2003
Posts: 738
Likes: 1
From: Hurlburt Field
Car: 84 Z28, '15 Colorado
Engine: L69
Transmission: A4
Axle/Gears: 3.73
Re: high idle in cold weather
Does a TBI have a high idel adjustment? I assume it would be on the passenger side of the TBI.
Joined: Dec 2005
Posts: 4,795
Likes: 15
From: St. Cloud, MN
Car: 1984 Trans Am
Engine: LS1383 in work
Transmission: Magnum F - to be installed
Axle/Gears: Zexel Torsen 3.73, 28-spline mosers
Re: high idle in cold weather
Have you verified no vacuum leaks?
Thread Starter
Member
Joined: Jul 2009
Posts: 155
Likes: 1
Car: 1990 RS Camaro
Engine: 400 sbc throttle body
Transmission: world class t5 manual
Axle/Gears: 3.73's, Detroit TrueTrac
Re: high idle in cold weather
it does have an idle adjustment on the passengerside. and i have tried adjusting it. i havent checked for vacuum leaks, because it only does it in cold weather. and i havent had a proublem with it when i first bought it 3 years ago and it just randomly started it these past few months.
Thread
Thread Starter
Forum
Replies
Last Post
nhra-trans-am
Southern California Area
14
Sep 17, 2015 10:16 PM
