GTA 5.7- injectors ? Or is it my ECM? PROBLEM SOLVED!
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From: Cooper City, Florida
Car: 1988 GTA
Engine: 5.7 355
Transmission: automatic
GTA 5.7- injectors ? Or is it my ECM? PROBLEM SOLVED!
After driving 3 or 4 miles in 90 degree weather my car starts to buck, looses power and then stops completely. I have to wait about 30 minutes before it would stay running long enough to get home. I just put in a new MAF thinking it was the issue but it hasn't changed. Any ideas? Car only has 100,000 miles but hasn't been driven much at all in the last few years. The temp gauge stops at 160 degrees.
Last edited by mper11; Jun 24, 2014 at 09:50 AM.
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From: knoxville tn
Car: 86 IROC
Engine: 5.0 TPI
Transmission: 700-R-4
Axle/Gears: 2.73 open
Re: 88 GTA 5.7- could my injectors be getting to hot?
After driving 3 or 4 miles in 90 degree weather my car starts to buck, looses power and then stops completely. I have to wait about 30 minutes before it would stay running long enough to get home. I just put in a new MAF thinking it was the issue but it hasn't changed. Any ideas? Car only has 100,000 miles but hasn't been driven much at all in the last few years. The temp gauge stops at 160 degrees.
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Axle/Gears: Behind me somewhere
Re: 88 GTA 5.7- could my injectors be getting to hot?
No, the injectors won't do that.
Check the fuel pressure, WHILE IT'S IN THE ACT OF SCREWING UP (not just, sitting in the driveway happily idling)
Fix the temp gauge. Kinda ... risky ... to drive around with a temp gauge that doesn't cover the normal operating range of the thing it's supposed to be measuring.
Check the fuel pressure, WHILE IT'S IN THE ACT OF SCREWING UP (not just, sitting in the driveway happily idling)
Fix the temp gauge. Kinda ... risky ... to drive around with a temp gauge that doesn't cover the normal operating range of the thing it's supposed to be measuring.
Thread Starter
Junior Member
Joined: Mar 2014
Posts: 14
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From: Cooper City, Florida
Car: 1988 GTA
Engine: 5.7 355
Transmission: automatic
Re: 88 GTA 5.7- could my injectors be getting to hot?
I tried pulling codes with a paperclip. And it doesn't even flash 12? Could this mean I have a bad the ECM?
Thread Starter
Junior Member
Joined: Mar 2014
Posts: 14
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From: Cooper City, Florida
Car: 1988 GTA
Engine: 5.7 355
Transmission: automatic
Re: 88 GTA 5.7- could my injectors be getting to hot?
Even worse I got the MAF off ebay. It came off a GTA that was hit in the rear quarter and then parted out. I have a sneaking suspicion it's the ECM since I can't pull any codes. Is it safe to get one from Auto Zone?
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From: Modesto, California
Car: 88 Firebird Formula
Engine: LO5 5.7 TBI/Ebl Flash
Transmission: 700R4
Axle/Gears: 2.73 stock rear end
Re: 88 GTA 5.7- could my injectors be getting to hot?
What ever you do DO NOT BUY IT from AutoZone. Go to a junkyard and pull one for $17.99
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Joined: Jun 2011
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From: knoxville tn
Car: 86 IROC
Engine: 5.0 TPI
Transmission: 700-R-4
Axle/Gears: 2.73 open
Re: 88 GTA 5.7- could my injectors be getting to hot?
I got mine from oreilleys, then I had a custom chip burned.TADAAA! no more problem. and if you do get a re-man ECM....... DO NOT under any circumstances get from auto zone
Thread Starter
Junior Member
Joined: Mar 2014
Posts: 14
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From: Cooper City, Florida
Car: 1988 GTA
Engine: 5.7 355
Transmission: automatic
Re: 88 GTA 5.7- could my injectors be getting to hot?
Guess it had a re manufactured one in it already.
Last edited by mper11; Jun 22, 2014 at 06:51 PM.
Supreme Member
Joined: Jun 2011
Posts: 2,036
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From: knoxville tn
Car: 86 IROC
Engine: 5.0 TPI
Transmission: 700-R-4
Axle/Gears: 2.73 open
Re: 88 GTA 5.7- could my injectors be getting to hot?
Thread Starter
Junior Member
Joined: Mar 2014
Posts: 14
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From: Cooper City, Florida
Car: 1988 GTA
Engine: 5.7 355
Transmission: automatic
Re: 88 GTA 5.7- could my injectors be getting to hot?
Joined: Apr 2000
Posts: 3,938
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From: Huntsville AL
Car: 88GTA
Engine: 5.7TPI
Transmission: Auto
Axle/Gears: 3.27
Re: 88 GTA 5.7- could my injectors be getting to hot?
Tuned Performance does an awesome job! Highly recommended, but you still haven't addressed the "no code" issue......or did you?
Thread Starter
Junior Member
Joined: Mar 2014
Posts: 14
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From: Cooper City, Florida
Car: 1988 GTA
Engine: 5.7 355
Transmission: automatic
Re: 88 GTA 5.7- could my injectors be getting to hot? Or is it my ECM?
Im getting a new ECM today, im gonna use the old hypertech memcal just to see if I can pull any codes. I do want to get a new chip from Brian @ tuned performance.
Thread Starter
Junior Member
Joined: Mar 2014
Posts: 14
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From: Cooper City, Florida
Car: 1988 GTA
Engine: 5.7 355
Transmission: automatic
Re: GTA 5.7- injectors ? Or is it my ECM? PROBLEM SOLVED!
Would the ECM be effecting the temp gauge reading? It's now operating at 190-195
Last edited by mper11; Jun 24, 2014 at 11:01 AM.
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Joined: Jun 2011
Posts: 2,036
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From: knoxville tn
Car: 86 IROC
Engine: 5.0 TPI
Transmission: 700-R-4
Axle/Gears: 2.73 open
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