1987 Chevy S-10 Fuse keeps blowing ECM

1987 CHEVROLET S-10
170,000 MILES • 6 CYL • 2WD • AUTOMATIC
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OMIE
  • MEMBER
  • 1 POST
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?
Jun 8, 2010 at 9:31 PM
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RASMATAZ
  • ✓Experienced Mechanic
  • 75,988 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://images.2carpros.com/forum/automotive_pictures/12900_ecm_14.jpg

Jun 8, 2010 at 9:41 PM
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