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#1
08-11-2010, 01:49 PM
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Help please!!!
My 84 vette "check engine" light is on. I ran a diagnosis and got the code 42 error for the EST and the ECM. I've changed the EST(SPARK MODULE) and still has the error message. Should I change the ECM(CONTROL MODULE) as well to clear the message?
 
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#2
08-11-2010, 09:09 PM
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Re: Help please!!!
Cajun , try going to http://www.troublecodes.net/articles...ndrstd42.shtml
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