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Discussion Starter #1
Hey there.

I would like to know how I would go about taking the engine computer out of a 92 Cadillac DeVille. I'm doing this for a co-worker of mine, and I don't know much about Caddys. Do I take off the heater ducts under the dash and it's located somewhere in there?

Any help is appreciated.


--Chris
 

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whats the reason for removing the computer? that's not something thats normal maintenance! there usually behind the glove box, or mid center area. you may need to drill a bolt out, you may not. be VERY careful with it, disconnect the battery first, and id recommend an ESD strap (electro static discharge) as the CPU is grounded to the car until you unbolt it... and if you have static built up and touch a connector or grounding screw..........
 

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Discussion Starter #4
Well, to make a long story short, the car is pinging under acceleration even with premium gasoline. The guy I'm changing it for brought the car to a mechanic and said he did something, like jump a wire or plug something into the computer and the pinging stopped. So the mechanic said the comp was bad and he asked me to put a rebuilt unit for him.
 

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sounds more like timing is off, he prolly jumped pins A and B putting car into BASE TIMING MODE. something crook mechanics do to get a guy out of the shop sayin " its the computer" . its a cop out. the timing is set with a timing light and turning the distrubutor to 10 degrees BTDC. this info is found in any chiltons manual or any other cadillac service manual. DO NOT CHANGE THE COMPUTER, its not the ECM or BCM that's bad. you'd see a C, or E, or no fuel or climate control panel displays. and the service lights would not turn on.
 
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