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Throttle Body Differences

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Old 06-05-2001, 10:20 PM
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Throttle Body Differences

The accelerator cable thingie on my '88 TPI throttle body is hanging up a little. When I let off the gas, it doesn't settle down all the way at idle unless I tap the gas real quick. I've traced the problem to the throttle body. Is there any difference between this one and the one I have with my spare TPI setup from an '86 305 Camaro?


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1980 Camaro, '88 Police 350 engine, Headers, full exhaust, completely redone, my baby!
1988 Iroc-Z L98, MSD 6a, Accel coil, K+N's, Airfoil, Coolant Bypass, Flowmaster, Gears, Late model Bose, I like the 80 better
Old 06-05-2001, 10:27 PM
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<font face="Verdana, Arial" size="2">Originally posted by Steve R:
The accelerator cable thingie on my '88 TPI throttle body is hanging up a little. When I let off the gas, it doesn't settle down all the way at idle unless I tap the gas real quick. I've traced the problem to the throttle body. Is there any difference between this one and the one I have with my spare TPI setup from an '86 305 Camaro?


</font>
mine did that,
it finally just quit though,
don't know what i did
Old 06-05-2001, 11:11 PM
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Car: 89 Iroc
Engine: 305TPI
Transmission: T5
IIRC there is a difference between those. In 88 they changed the throttle body in the TPI. So the 86 would not fit in the 88 but if someone that knows better than I hopefully they will correct me.
Old 06-06-2001, 01:56 AM
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Car: 1990 Pontiac Trans Am
Engine: 355 TPI siamesed runners
Transmission: Tremec T56
Axle/Gears: 12-Bolt 3.73
85-88 use the same throttle body, so yes your 86 TB is the same as your 88 TB. 89-92 is the other style of TB.

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Old 06-06-2001, 11:53 AM
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Engine: 5.7L V8
Transmission: 700R4
Steve, if you hook your foot under the gas pedal and pull it towards you, does it go back down to the right idle? You may just need to lubricate the accelerator cable. I just used a bit of motor oil and it seemed to help.

Alex
Old 06-06-2001, 12:30 PM
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No, if I hook my foot under the pedal, it doesn't do it. But I should probably do that anyway. How do I go about lubricating the cable?

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1980 Camaro, '88 Police 350 engine, Headers, full exhaust, completely redone, my baby!
1988 Iroc-Z L98, MSD 6a, Accel coil, K+N's, Airfoil, Coolant Bypass, Flowmaster, Gears, Late model Bose, I like the 80 better
Old 06-06-2001, 11:13 PM
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Car: 1991 BandittII Firebird
Engine: 5.7 HSR
Transmission: 700R4
Axle/Gears: 3.27 9 bolt
just put your spare TB in and see if that fix's your problem

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Project 350 TPI Banditt II
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Old 06-07-2001, 12:25 PM
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Location: Doghouse ······································ Car: 1989 Formula 350 Vert Engine: 350 L98 Transmission: 700R4 Axle/Gears: B&W 3.27
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Car: 87 Formula T-Top, 87 Formula HT
Engine: 5.1L TPI, 5.0L TPI
Transmission: 700R4, M5
Axle/Gears: Sag 3.73, B&W 3.45
I had this problem (ONCE) I forgot to put the plastic cover up properly under the dash, there is a slot where the accelerator pedal is. I caught on the end of the plastic and it would not release. I re-adjusted the plastic cover and all is well now.

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87 Formula 5.1 converted to TPI Yellow/Black
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Baer 12" brakes 4 wheels
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South side machine frame connecters
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83 Camaro (Parts)
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