What happens if a TPS goes bad?
04-24-2001, 07:11 AM
#1
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What happens if a TPS goes bad?
I am trouble shooting my car. Trying to figure out this damn idle and driving prob. I just want to know what the symptoms of a bad TPS are? Thanks
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91 Z28 Camaro
305 TPI
Flowmaster 3" exhaust
700R4 with 2000 Stall and shift kit
One sweet sounding system
------------------
91 Z28 Camaro
305 TPI
Flowmaster 3" exhaust
700R4 with 2000 Stall and shift kit
One sweet sounding system
04-24-2001, 10:30 AM
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Car: 1986 Pontiac Trans Am
Engine: 5.0 TPI
Transmission: 700R4
Once, my TPS was shot...so i had to get a new one, which cost somewhere around 20-30 bucks...i dont remember. Some symptoms that i noticed were things like an obvious fluctuating idle, when hitting the gas, the car does not move like it should, or even hesitates to move and THEN after flooring it for a bit, starts to pick up the speed. That is what happend to me. Even if its in park, and you hit the gas, the car wont rev like it should. At first i thought it was the MAF, but it wasnt. The only thing is with the TPS, is that you should have a diagnostics tool that monitors engine speed, air intake, and fuel mixture raitos to properly "set" the TPS...because it does need fine tuning to work properly. Cant really just slap it on...well, you can, but if you want the car to run the way its supposed to, it needs a bit more precision.
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1986 WS6-Equipped 5.0 TPI Trans Am
Random Tech High-Flow Cat
Two Chamber Flowmaster Muffler
Megs Custom 4.5" Stainless Steel Rolled Tips
1999 Grand Am GT In-Dash CD Player w/Equalizer(fits like '86 original)
5% Tint On Rear, 35% On Sides
http://www.pitt.edu/~zyhst/trans86/
OTHER RIDE:
1998 C5 6Spd. Corvette Coupe
Silver w/Gray Leather Int.
12/14 Options
Stock(for now)
Best 1/4th: 13.5 @ 104.4MPH
------------------
1986 WS6-Equipped 5.0 TPI Trans Am
Random Tech High-Flow Cat
Two Chamber Flowmaster Muffler
Megs Custom 4.5" Stainless Steel Rolled Tips
1999 Grand Am GT In-Dash CD Player w/Equalizer(fits like '86 original)
5% Tint On Rear, 35% On Sides
http://www.pitt.edu/~zyhst/trans86/
OTHER RIDE:
1998 C5 6Spd. Corvette Coupe
Silver w/Gray Leather Int.
12/14 Options
Stock(for now)
Best 1/4th: 13.5 @ 104.4MPH
04-24-2001, 11:57 AM
#3
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Thanks for the info.....I don't think my prob is the TPS then. The car is driveing beautiful and everything is normal except the idle won't com down at stops or in park or neutral. It is intermittent so I still think it is a sensor.
------------------
91 Z28 Camaro
305 TPI
Flowmaster 3" exhaust
700R4 with 2000 Stall and shift kit
One sweet sounding system
------------------
91 Z28 Camaro
305 TPI
Flowmaster 3" exhaust
700R4 with 2000 Stall and shift kit
One sweet sounding system
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