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1992 Chevy Cavalier Car won't start ECM Fuse blown

Tiny
GTRGILBERT541
  • MEMBER
  • 1992 CHEVROLET CAVALIER
  • 4 CYL
  • FWD
  • AUTOMATIC
  • 149,000 MILES
Today my car just quit while on my way to work. I had it towed to a mechanic and he looked over everything. Replaced all fuses replaced all relays changed the crank sensor, made sure the fuel pump was working replaced ecm and the car still won't start, so next we tested the car for engine codes and it said no communication with module any help would be great
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Wednesday, October 1st, 2008 AT 8:27 PM

3 Replies

Tiny
2CARPRO JACK
  • MECHANIC
  • 11,533 POSTS
If it wont communicate there is still a problem with the ecm or the wiring to it. Is there power at the diagnostic connector? If so you need to do a pin to pin voltage test at the ecm to determine what is missing. Could be a bad wire or connection somewhere.
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Friday, October 3rd, 2008 AT 8:13 AM
Tiny
GTRGILBERT541
  • MEMBER
  • 14 POSTS
Thanks was a wire that burned into
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Sunday, October 5th, 2008 AT 10:47 AM
Tiny
2CARPRO JACK
  • MECHANIC
  • 11,533 POSTS
Good find.
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Monday, October 6th, 2008 AT 7:46 AM

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