Symptoms of a bad TPS sensor?
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Joined: Oct 2002
Posts: 382
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From: Winnipeg,MB,Can
Car: 1991 GTA
Engine: 5.7L L98
Transmission: 4L60
Axle/Gears: 3.23
Symptoms of a bad TPS sensor?
What are some of the signs your TPS sensor is outa whack or sticking. Car is having some idling, light throttle response issues, wondering if this could be the cause.
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From: DFW
Car: 1991 Z28 & 1992 Z28
Engine: LB9 & L98
Transmission: T56 & T56
Axle/Gears: 4.10s & 3.23s
Re: Symptoms of a bad TPS sensor?
best way to check is use a volt meter with an analog display. turn your key on but not started. Slowly move your throttle by hand and watch the display. If it moves smoothly then there are no bad spots on your TPS. Then check your actual voltage reading at full throttle and idle for the TPS.
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From: RVA
Car: 89RS,89TBI FB, 91Z28, 89TPI FORMULA
Engine: 357 SBC TPI
Transmission: World Class T-5 (for now)
Axle/Gears: Strange 12-bolt 3.73
Re: Symptoms of a bad TPS sensor?
I knew mine was bad when I let off the throttle and still had 1.13 volts.
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Joined: Jan 2004
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From: Lockport,IL
Car: 94 25th TA
Engine: 355LT1
Transmission: T-56
Axle/Gears: 10bolt 3.42
Re: Symptoms of a bad TPS sensor?
I would just buy a new one. There only $20 and if you still have the original its going to need to be replaced sooner or later.
When mine went out i had a rough idle and when i was accelerating it was sputtering. Also my check engine light came on, and when I scaned the code it came up as the tps, so that made it easy enough.
When mine went out i had a rough idle and when i was accelerating it was sputtering. Also my check engine light came on, and when I scaned the code it came up as the tps, so that made it easy enough.
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mdtoren
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Aug 16, 2015 05:45 PM





