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Discussion Starter · #1 ·
Is this true??? Lets say your cat is no longer there and when you reset your ecu the check engine comes on but after a few days the light goes off is this common? When the light is off does the timing go back to normal?
 

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the ecu has stored the prob. when the lite goes out,if it is not a prob.... just a change its not use to.
 
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