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Prom Swap

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Old Feb 21, 2018 | 12:07 AM
  #1  
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Prom Swap

Service #16198445. Taking the Prom from my 87' GTA and using it in this ECM. The Prom # was DELCO AUXF 3766 In this 87' Corvette ECM. The GTA Prom # isDELCO ABWT 8674. Seems I counted 31 not 32 pins in the Corvette ECM. Could this be a problem? Thanks for your time.
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Old Feb 21, 2018 | 07:19 AM
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Re: Prom Swap

Not sure what pins you are counting, but a '8445 ECM ('7165), is a '8445 ECM. The application it was used in doesn't matter.

Note that the information I have shows AUXF being for a small truck with a TBI 4-banger.

RBob.
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Old Feb 21, 2018 | 11:33 AM
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Re: Prom Swap

Counting the Pins that the Prom attaches too. Swapped it over and hoping to just plug the ECM back in and all will be good for a test drive. Anything else that I need to know? Thanks.
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Old Feb 21, 2018 | 11:35 AM
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Re: Prom Swap

Disconnect your battery before swapping out your original memcal.
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Old Feb 21, 2018 | 03:03 PM
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Re: Prom Swap

you bet...thanks.
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Old Feb 25, 2018 | 12:03 PM
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Re: Prom Swap

If you counted the pins on the PROM itself and came up with 31, you miscounted. There will be an even number of pins.
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Old Feb 26, 2018 | 11:13 PM
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Re: Prom Swap

Must have. Waiting for the weather to warm a bit so I can give it a whirl.
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Old Mar 4, 2018 | 07:47 PM
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Re: Prom Swap

Ok.Swapped the Prom and flashed her up. Seemed to run alot smoother for a few minutes,till nice and warm .Shut it off and won't fire again. Have to leave for a while before it will fire again. Will run ,but quits after a few seconds now. Have not checked the spark yet. Any Ideas?
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Old Mar 4, 2018 | 08:08 PM
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Re: Prom Swap

Originally Posted by gtaformula
Ok.Swapped the Prom and flashed her up. Seemed to run alot smoother for a few minutes,till nice and warm .Shut it off and won't fire again. Have to leave for a while before it will fire again. Will run ,but quits after a few seconds now. Have not checked the spark yet. Any Ideas?
You might want to start a new thread this seems unrelated.
Check fuel pressure as well as spark .
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