Car computer

Tiny
CARLB403
  • MEMBER
  • 1989 BUICK CENTURY
  • 6 CYL
  • FWD
  • AUTOMATIC
  • 180,000 MILES
I put a new computer in my 89 buick century. Now the car will not start. Put the old one back in and the car will not start.
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Sunday, November 21st, 2010 AT 3:29 PM

6 Replies

Tiny
KHLOW2008
  • EXPERT
What was the reason for replacing the computer?
Have you performed basic testings and what is missing causing the non starting?

http://www.2carpros.com/articles/car-cranks-but-wont-start
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Sunday, November 21st, 2010 AT 3:55 PM
Tiny
WRENCHTECH
  • EXPERT
Did you install a NEW ECM from the factory or a used one from somewhere else?
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Sunday, November 21st, 2010 AT 3:56 PM
Tiny
CARLB403
  • MEMBER
The unit was purchased at Advanced Auto. Not new but rebuilt. The car was losing power while driving. With stop and go traffic. And would not start after turning off and then trying to start again. With a jump, it would start. And it would also start after a couple hours of being idle. We took it to a mechanic and he replace the crankshaft sensor but he said that afterward the car did stall once. And that he did not think it was the sensor that he felt the computer should be replaced. So that is what I did this morning. Any suggestions?
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Sunday, November 21st, 2010 AT 4:10 PM
Tiny
WRENCHTECH
  • EXPERT
I don't know how he conclude any of that. If the engine will start with a jump, then you have a battery or charging system issue. I don't see where you get computer from that
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Sunday, November 21st, 2010 AT 4:13 PM
Tiny
CARLB403
  • MEMBER
I checked the alternator for output and the battery is holding a charge. Put in new computer, the engine cranks but does not start. Put old one back in and get the same thing.
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Sunday, November 21st, 2010 AT 4:24 PM
Tiny
WRENCHTECH
  • EXPERT
Yeah, you said that.
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Sunday, November 21st, 2010 AT 4:50 PM

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