TPS disconnected, no more stall?
Thread Starter
Member
Joined: May 2016
Posts: 120
Likes: 1
From: Rome, Italy
Car: Pontiac Firebird Formula
Engine: 3.1 LH0
Transmission: 700R4
Axle/Gears: Automatic
TPS disconnected, no more stall?
Hi guys, may be my stalling problem was about the TPS? Whir warm engine, I disconnected the IAC first, no changes. When I disconnected and reconnected the TPS, the engine gradually got better, with no more stalling problem! I noticed the path of the alternator, IAC and TPS wiring harness: is that normal that the harness is so close to the thermostat hose? This should explain the stalling problem when hot? Any help is very appreciated!
Thanks!
Senior Member
Joined: Jan 2008
Posts: 917
Likes: 1
From: peterborough UK
Car: 88 T firebird
Engine: 2.8
Transmission: t5
Re: TPS disconnected, no more stall?
I'd have to check .It is all very tight around there though, that position shouldn't be causing any problems , all the wiring is designed to handle engine bay heat . Unless it's rubbed worn out and grounding .
Senior Member
Joined: Jan 2008
Posts: 917
Likes: 1
From: peterborough UK
Car: 88 T firebird
Engine: 2.8
Transmission: t5
Re: TPS disconnected, no more stall?
I'd guess you just have some corrosion on the connection, that you cleaned when you disconnected and reconnected the plug , get some cleaner spray in there, carefully with a small file / knife clean it up , or push it on off a few times to clean it up .
Senior Member
Joined: Sep 2014
Posts: 749
Likes: 39
From: Los Angeles
Car: 92 Z28 Clone
Engine: Vortec 350
Transmission: T-56
Axle/Gears: 3.23 Torsen
Re: TPS disconnected, no more stall?
I don't think tps would cause a stall. When I rebuilt my trans, freshened up my 3.1 and put everything back together I was stalling when coming to a stop. The grounds on the back of the heads were a bit loose. Might wanna check those if the new tps doesn't fix the issue.
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