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Simple Fix?????????

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Old

09-07-2016, 11:25 AM

#1

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Car: 1987 Camaro Z28, 1989 TTA #922

Engine: lb9, 3.8L turbo

Transmission: 700r4, 2004R

Simple Fix?????????

My 87Z28 305 tpi will not accelerate when pressing on gas pedal. The rpms slowly climb but upon releasing the gas pedal the car will accelerate forward? Anyone run into this issue??

Javier87z28 is offline

Old

09-07-2016, 12:43 PM

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Car: 1989 Pontiac Formula 350

Engine: L98

Transmission: 700R4

Axle/Gears: BorgWarner 3.27 Posi

Re: Simple Fix?????????

My first suspicion is the TPS (throttle position sensor).

thtanner is offline

Old

09-07-2016, 01:00 PM

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Car: 1987 Camaro Z28, 1989 TTA #922

Engine: lb9, 3.8L turbo

Transmission: 700r4, 2004R

Re: Simple Fix?????????

Quote:

Originally Posted by thtanner

My first suspicion is the TPS (throttle position sensor).

Ill give it a check, I adjusted it a bit and it did idle quite better, thanks for your thoughts.

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09-07-2016, 01:04 PM

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Car: 1989 Pontiac Formula 350

Engine: L98

Transmission: 700R4

Axle/Gears: BorgWarner 3.27 Posi

Re: Simple Fix?????????

Quote:

Originally Posted by Javier87z28

Ill give it a check, I adjusted it a bit and it did idle quite better, thanks for your thoughts.

I'd make sure you see voltage rise smoothly as you give it throttle. Should be .54 -> 4v+ if it's the same as mine.

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Old

09-07-2016, 01:18 PM

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Car: 1987 Camaro Z28, 1989 TTA #922

Engine: lb9, 3.8L turbo

Transmission: 700r4, 2004R

Re: Simple Fix?????????

Quote:

Originally Posted by thtanner

I'd make sure you see voltage rise smoothly as you give it throttle. Should be .54 -> 4v+ if it's the same as mine.

Ill give it a check tonight after work, thanks.

Javier87z28 is offline

Old

09-21-2016, 01:01 PM

#6

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Car: 1987 Camaro Z28, 1989 TTA #922

Engine: lb9, 3.8L turbo

Transmission: 700r4, 2004R

Re: Simple Fix?????????

So turned out not to be the tps sensor. Yesterday evening I unplugged the maf sensor and assemby and it idles high but keeps an idle and accelerates pretty smooth. Might this point to the Maf being the culprit even though its not throwing a code for maf?

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