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350 TPI problem

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Old Dec 27, 2011 | 01:19 PM
  #51  
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Car: Pontiac Trans Am GTA -87
Engine: 5.7 TPI
Re: 350 TPI problem

No i didnt, but i spoke to a guy about the ECM today. He lives near me so that may help me out a bit. He said that the ECM should be exactly the same as mine, but the prom is meant for bigger injectors.
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Old Dec 27, 2011 | 01:43 PM
  #52  
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From: Boulder Colorado
Car: 1988 GTA
Engine: 5.7 TPI w/ Bosch III's
Transmission: T56
Axle/Gears: 3.27 Borg Warner 9 bolt
Re: 350 TPI problem

Excellent, you will be able to determine if the prom or ecm is causing code 41.

According to WinALDL; when the car is running does the O2 function properly (its values should vary between 0.1V and 1.0V)? What do the BLM's do? What do the INT's do?

What is the fuel pressure? I am concerned your injectors are leaking.

Hope this helps...

Last edited by skibum2100; Jan 19, 2012 at 02:53 PM.
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Old Dec 27, 2011 | 01:47 PM
  #53  
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Engine: 5.7 TPI
Re: 350 TPI problem

I have to check tomorrow, i havent tested the fuelpressure. maybe it would be good to know. i think my friend have a fuelpressure gauge that fits directly to the fuelrail, have to ask him
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Old Dec 27, 2011 | 01:52 PM
  #54  
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From: Boulder Colorado
Car: 1988 GTA
Engine: 5.7 TPI w/ Bosch III's
Transmission: T56
Axle/Gears: 3.27 Borg Warner 9 bolt
Re: 350 TPI problem

Excellent, the pressure should be ~42-47 psi with FPR vacuum line removed/plugged.

Good luck...
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Old Dec 28, 2011 | 05:07 PM
  #55  
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Car: Pontiac Trans Am GTA -87
Engine: 5.7 TPI
Re: 350 TPI problem

my friends gauge does not fit to the fuelrail but im going to ask another guy.
i was also reading data, i took some screenshots on the rawdata and dash.
in raw data the blm was 128 on 800 rpm and int was the same.

in the screenshots i got another value on the blm when i gave it throttle.
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Old Dec 28, 2011 | 09:09 PM
  #56  
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From: Boulder Colorado
Car: 1988 GTA
Engine: 5.7 TPI w/ Bosch III's
Transmission: T56
Axle/Gears: 3.27 Borg Warner 9 bolt
Re: 350 TPI problem

Did you give the car enough time to reach operating temperature?
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Old Dec 29, 2011 | 01:24 PM
  #57  
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Car: Pontiac Trans Am GTA -87
Engine: 5.7 TPI
Re: 350 TPI problem

Maybe not full operating temp. but i had it running pretty long time.

I also spoke to the guy with the ECM, it was sold many years ago
He thought he had it, but then he remembered that he sold it.
So.. did someone of you have an ECM for sale?

Havent tested fuelpressure yet...

Do i have a EGR temp switch on my car?

Can EGR switch and knock sensor have something to do with my problem?
they havent been changed.

Last edited by Pajjen; Dec 29, 2011 at 01:46 PM.
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Old Jan 19, 2012 | 02:55 PM
  #58  
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From: Boulder Colorado
Car: 1988 GTA
Engine: 5.7 TPI w/ Bosch III's
Transmission: T56
Axle/Gears: 3.27 Borg Warner 9 bolt
Re: 350 TPI problem

Hi Pajen,

Any updates?

I do have a computer I would be willing to sell.

Cheers,
Vince
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Old Jan 20, 2012 | 04:40 PM
  #59  
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From: Finland
Car: Pontiac Trans Am GTA -87
Engine: 5.7 TPI
Re: 350 TPI problem

Yes!
Now its running, i bought a ECM and Prom from tunedperformanc
The car runs fine now, but its so much snow here so i cant testdrive it.
Now i have a lot of other stuff that has to be done to the car before the summer.

Thank you all that helped me out on this!

Cant wait to
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Old Jan 20, 2012 | 05:08 PM
  #60  
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From: Maryland
Car: 1987 IROC-Z
Engine: 5.7 TPI
Transmission: 700-R4
Axle/Gears: 2.73
Re: 350 TPI problem

Pajjen,

What prom did you use?
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Old Jan 20, 2012 | 05:10 PM
  #61  
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Car: 1967 Camaro, 91 z28
Engine: Lb9
Transmission: M20
Axle/Gears: J65 pbr on stock posi 10bolt
Re: 350 TPI problem

Once you have a chance to drive it. I might be able to salvage your hypertech with a new moated.net d2 and a new reprogramed eprom.
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Old Jan 21, 2012 | 01:31 AM
  #62  
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From: Finland
Car: Pontiac Trans Am GTA -87
Engine: 5.7 TPI
Re: 350 TPI problem

Hmm.. i dont really know, its something tunedperformanc sold to me. and i trust him.. so.. im a bit about the proms

Originally Posted by IROCU2
Pajjen,

What prom did you use?
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Old Jan 21, 2012 | 02:07 AM
  #63  
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Car: 1967 Camaro, 91 z28
Engine: Lb9
Transmission: M20
Axle/Gears: J65 pbr on stock posi 10bolt
Re: 350 TPI problem

The mescal was a older $32b that I uv erased and reprogramed to a $6e L98 automatic with a little better timing.
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