ECM replacement

1991 OLDSMOBILE CIERA
156,000 MILES • 6 CYL • FWD • AUTOMATIC
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LINDAT
  • MEMBER
  • 1 POST
The car has had numerous parts replaced with the same problem existing the ECM does not give any faulty codes want to knw how to repalce? Is a computer synchronization required? Is a fuse required?
Jul 30, 2011 at 8:21 AM
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FACTORYJACK
  • ✓Experienced Mechanic
  • 4,159 POSTS
It should be just a replacement item, no programming. You may however, have to transfer the prom chip. If there is an access door, that is held on with screws, there is a prom behind it. It stores information specific to your vehicle.
Jul 30, 2011 at 9:30 AM
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