1990 Ford Mustang Check Engine

1990 FORD MUSTANG
210,000 MILES • 4 CYL • 2WD • MANUAL
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GHIBBITS
  • MEMBER
  • 1 POST
When under about 1800 rpms, my check engine light comes on. When over, it goes off. Is this just a wiring problem?
Oct 4, 2010 at 7:05 PM
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RASMATAZ
  • ✓ASE Certified Mechanic
  • 75,992 POSTS
  • ASE Certified Mechanic
Have the computer scanned for code/s-you have a problem within the engine management system that caused the CEL to turn on-This is your starting point of diagnosis,finding out what's going on.
Oct 5, 2010 at 2:22 AM
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