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The ECM on this van is fried

Tiny
RSFRIESE
  • MEMBER
  • 1999 CHEVROLET EXPRESS
  • 66,000 MILES
The ecm on this van is fried. If I get a used ecm with the same service number four letter code number etc. Will it work without anything done to it?
Saturday, March 2nd, 2013 AT 4:47 PM

3 Replies

Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
No, it needs to be flashed. It may or may not take the flash as it is set up for another vehicle.

I would replace it with a new one and get it flashed

if the old one fried, as you say, make sure you find the reason or you will fry the replacement as well.

Roy
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Saturday, March 2nd, 2013 AT 4:51 PM
Tiny
RSFRIESE
  • MEMBER
  • 2 POSTS
I took the original ecm apart and found the seal leaked. Found a resistor totally gone. So a used one is out of the question. Have to purchase a rebuilt ecm programmed for my vehicle. Thank you! You saved me extra money buying a used ecm that wont work.
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Saturday, March 2nd, 2013 AT 5:08 PM
Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
Good luck

Roy
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Saturday, March 2nd, 2013 AT 5:09 PM

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