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1992 Trans Am Stalling Issue

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Old 03-03-2023, 09:06 PM
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1992 Trans Am Stalling Issue

Hey folks. Have a 1992 Trans Am 5.0L 305. It has been stalling out a lot lately. Typically when I come to a stop, either after reversing and going into drive OR just coming to a stop for a red light or to turn into traffic. Any ideas of what may be causing this would be much appreciated. I’m thinking maybe vacuum hoses? I literally have no idea and am very new to car work.
Old 03-04-2023, 01:36 PM
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Car: 1989-92 FORMULA350 305 92 Hawkclone
Engine: 4++,350 & 305 CIs
Transmission: 700R4 4800 vig 18th700R4 t56 ZF6 T5
Axle/Gears: 3.70 9"ford alum chunk,dana44,9bolt
Re: 1992 Trans Am Stalling Issue

There is a lot it could be and honestly, a data logging cable would be a great start.
Old 03-05-2023, 05:42 PM
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Car: '91 Firebird Formula
Engine: SP383 Deluxe FIRST® TPI Intake
Transmission: Tremec T56
Axle/Gears: Moser 9" Eaton Truetrac Motive 3.89
Re: 1992 Trans Am Stalling Issue

Originally Posted by TTOP350
There is a lot it could be and honestly, a data logging cable would be a great start.


It's like saying I have fever. What could be wrong with me Doctor?
Would like to help but I feel overwhelmed by how many things you need to check.
Well first, is it a TPI (LB9) or a TBI (LO3)?
Old 03-06-2023, 08:41 AM
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Re: 1992 Trans Am Stalling Issue

My '91 did that occasionally 2 yrs ago. I replaced the ignition module with a quality AC Delco replacement, so far so good. Never buy an ACCEL brand module, you will be left stranded eventually.
Old 03-06-2023, 01:39 PM
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Re: 1992 Trans Am Stalling Issue

@PAformula is this it?
Old 03-07-2023, 08:34 AM
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Re: 1992 Trans Am Stalling Issue


GM GENUINE D1943A
yes but this would be better
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