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1995 Chevy Monte Carlo Code 51 ECM Prom error

Tiny
VANILLACREAMF40
  • MEMBER
  • 1995 CHEVROLET MONTE CARLO
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 149,000 MILES
Error 51 ECM prom error came up in a diagnostic test. I was told this is only a dealer part and can be very expensive. I want to know if I can find another car like mine and take this part and install it in my car, I believe I would have to take the entire brain? Where is this "brain box" located and how much time is involved in replacing it?
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Thursday, July 10th, 2008 AT 1:59 AM

2 Replies

Tiny
RHALL77
  • MECHANIC
  • 3,361 POSTS
As long as you replace it with a used part, make sure everything is the same part number and service number
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Thursday, July 10th, 2008 AT 7:48 AM
Tiny
VANILLACREAMF40
  • MEMBER
  • 2 POSTS
Thank you for your advise but I also needed to know where the ecm prom is located, "brain box"?
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Saturday, July 12th, 2008 AT 7:44 PM

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