C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

ECM Prom-Please help

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Old Aug 13, 2004 | 07:02 PM
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Bill Harris's Avatar
Bill Harris
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From: Lipan,Texas
Default ECM Prom-Please help

I got a rebuilt ECM from Auto Zone, Pulled the Prom out and the rebuilt Ecm has one less pen . The oem ecm has 66 pens for the prom and the rebuilt one has 65. should I install the prom on the rebuilt one are not.

thanks
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Old Aug 13, 2004 | 08:36 PM
  #2  
Hooked on Vettes's Avatar
Hooked on Vettes
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Are you sure the the pin is missing? A bent pin can appear to be missing pin. If it's a bent pin, take a small flat blade screw driver and carefully
bend it back.

If the pin is broken off, I'd take it back. If you ever need to exchange the ECM they may say it's damaged and not take it as a core.
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Old Aug 13, 2004 | 09:09 PM
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SunCr
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For an '89? There are 24 and 32 Pin Connectors for a total of 64 Pins -though some aren't used. Prom or Memcal socket (I thought) was 36. Might try the Scan & Tune Forum.
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