1st Generation Specific (1979-1985) 1979-1985 Discussion including performance modifications and technical support sections

coasting - stumbles

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Old 08-20-12, 10:31 PM
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coasting - stumbles

car stumbles pretty bad just at one tiny spot when your trying to maintain speed.
like it either speeds up or slows down but stumbles badly w/just a tiny bit of gas.

is this the tps sensor out of adjustment or is it just a bad sensor?
car is stock gsl-se 160k miles had another one with the same problem that never got resolved.
Old 08-21-12, 09:11 AM
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My GSL-SE does the same thing. While in stop and go traffic if I let completely off the clutch it jerks like crazy. It also pulses at idle(might have something to do with it?). It seems to get worse with A/C.

I've been looking at this webpage trying to figure it out: Solving GSL-SE Idle Problems
Old 08-29-12, 12:29 PM
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check secondary injectors for proper operation, check auxillary ports if it is activating while reving your engine above 3800 rpm. I found mine that one port is not working.
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