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1987 Chevy S-10 Fuse keeps blowing ECM

Tiny
OMIE
  • MEMBER
  • 1987 CHEVROLET S-10
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 170,000 MILES
Truck was running just stopped. Thought it was a fuel problem. Had the module under the distributor cap check at Auto Zone. It was fine. Bought a fuel pump relay. Replaced the fuel pump in gas tank. Fuse for ECM keeps blowing. Replaced fuse. Blows.? Does this truck have a computer? If it does where is it located? Could it be the electronic spark control? Do you have the electrical schematic for this year truck?
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Wednesday, June 9th, 2010 AT 4:31 AM

1 Reply

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
The ECM/PCM/ECU it the same thing is at under right side of dash see below

You need to find the short that's causing the ECM fuse to blow-the wire you looking for is the orange wire from the fuse to the computer 12v Batt.


https://www.2carpros.com/forum/automotive_pictures/12900_ecm_14.jpg

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Wednesday, June 9th, 2010 AT 4:41 AM

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