ECM replacement issues

1999 CHEVROLET CAVALIER
201,000 MILES
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ACWALKER23
  • MEMBER
  • 1 POST
have replaced the ECM unit and car started fine after going through the relearn procedures. on the test drive the check engine light came back on and the engine got sluggish then stalled. now it will not start again. It acts as though it will start then does not. we no longer have the original key only copies. is this a problem with the fuel system, the anti theft system, or is it something with the new ECM? What is the easiest way to check these systems out?
Jul 22, 2012 at 9:03 PM
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.
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RASMATAZ
  • AUTOMOTIVE REPAIR CONTRIBUTOR
  • 75,992 POSTS
now it will not start again. It acts as though it will start then does not.

Go to this walk thru link and then let me know what you got- https://www.2carpros.com/articles/car-cranks-but-wont-start
Jul 22, 2012 at 9:09 PM
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