Car doesnt run smooth unless
Thread Starter
Junior Member
Joined: Jun 2015
Posts: 61
Likes: 0
From: Thornton, CO
Car: 1987 irocz28
Engine: 305 tpi
Transmission: t5 5 speed
Axle/Gears: GU4 3.08 g80
Car doesnt run smooth unless
I am accelerating. Now that i adjusted the tps iac and it idles 50 times better. The problem i have now is it doesnt hold speed limit under 50mph. The worse is 25mph. No matter what gear i put it in it studders so bad you will get whiplash any ideas as to what can cause this? If your on the freeway no problems but through town you have to ride the clutch it will jerk the s*** out of you. Im stumped.
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: Car doesnt run smooth unless
sounds like the TPS is having a miss-communication with the ECM. might look into that.
Thread Starter
Junior Member
Joined: Jun 2015
Posts: 61
Likes: 0
From: Thornton, CO
Car: 1987 irocz28
Engine: 305 tpi
Transmission: t5 5 speed
Axle/Gears: GU4 3.08 g80
Re: Car doesnt run smooth unless
Member
iTrader: (1)
Joined: Oct 2012
Posts: 326
Likes: 1
From: SLC, UT
Car: 1991 GTA
Engine: LB9
Transmission: T5
Re: Car doesnt run smooth unless
It definitely could be the wiring. My TPS has a plug that doesn't have the locking latch anymore(new one on the way). There is enough wiggle in the plug that the TPS isn't communicating well with the ECM.
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