High Idle Need Help!!
Thread Starter
Teching In
Joined: Feb 2007
Posts: 40
Likes: 0
From: Columbus, NE
High Idle Need Help!! Hello, Very new to the site and tried to search this before asking.
I have a 1998 Trans am LS1. Just today went to start it and the idle is very
high, right at 3,000 rpm. The idle will not settle down at all. The car has slp exhaust and that is it. I could use some help please. sorry if posted in the wrong forum. thanks
I have a 1998 Trans am LS1. Just today went to start it and the idle is very
high, right at 3,000 rpm. The idle will not settle down at all. The car has slp exhaust and that is it. I could use some help please. sorry if posted in the wrong forum. thanks
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If its a vacuum leak i think you would prob hear it sucking air. If you dont hear that then you need to check the TPS which that is prob what it is but also make sure all the stuff is plugged in all the way like said before.
I would say that it is your Throttle Position Sensor they are EZ to change and not expensive either..I had one go bad and I replaced it and the car idled fine afterward .. 
Thread Starter
Teching In
Joined: Feb 2007
Posts: 40
Likes: 0
From: Columbus, NE
would someone be able to explain where the TPS is or even a picture of it. I dont have access to a Chilton right now and am just curious what the extent of the fix will be. thanks
If you look at the top right corner or side of the throttle body you will see some wires going in there that are hooked up to a black plastic round thing ... it is right above that braided steel line and fitting on the lower side of the throttle body in the photo .. that is the throttle position sensor. When you examine it you will see how to unhook it...nothing to it ...it is a 2 minute job to replace it at the most
