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03 OBS loping like a diese at idle


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scan for pending codes

live data might help

any oil on the plug wire boots?

 

when it's idling, try squirting a small amount of starting fluid in the intake - if it smooths out, could be (???) dirty throttle body or IACV issue. If it gets worse....?bad injector?......misfire or ?

hope others with more experience reply

Edited by 1 Lucky Texan
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