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International Automotive Technicians Network
Re: CEL on, Multiple codes. where do you start?
Posted to Technical Discussion Forum on 8/29/2012

Diagnose all the codes that you can. Some may be intermittent and you may not find a cause for those codes at this time. Some may be related and therefore fixing one problem may be fixing two or more codes.

After diagnosing all that you can, explain your res... Login to read more.