Cadillac STS The newest installation of the performance sedan from Cadillac, having replaced the Seville

'93 STS computer issue

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Old 03-25-2015, 05:23 PM
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Join Date: Apr 2013
Posts: 2
Default '93 STS computer issue

Hi everyone, Ive had a check engine light on for quite a while. Been trying to figure out whats wrong. However, mechanics can not get the car's computer to communicate with their computer.
Everything computer wise and electronic is working in the car.
Any suggestions or input?
A friend suggested replacing the ECM
Thank you
 
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