89 cavalier

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  #1  
Old 04-18-07, 12:55 PM
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Wink 89 cavalier

Can someone tell me where the computer is located?This is a 4 cylinder,Thank u!
 
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Old 04-18-07, 01:01 PM
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The computer?

There are no computers in your vehicle.

There are however,

Powertrain control modules
Transmission control modules
Body Control Modules


What is the problem you are having?
 
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Old 04-18-07, 01:13 PM
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re89 cavalier

Im referring to the component that controls fuel air mixture,cooling fan relay, etc
 
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Old 04-18-07, 01:20 PM
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This would be the ECM (engine control module)

Usually these are located in the engine bad with about 2-3 large wire harness connectors going to them.

I don't have a schematic of where it's at, so that's the best I can do.

I'm not even sure if a Chiltons or Haynes manual would have it seeing those manuals are pretty vague to begin with.

Your O2 sensor(s) are wired directly to the ECM, so if you can trace that wire, it will lead you to the ECM.
 
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Old 04-18-07, 02:32 PM
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location

My 89 GM product the ECM was located on the kick panel under the glove box look there also it is a big silver box with lots of wires going to it. I think they put it there to keep it out of the elements and away from the engine heat.
 
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