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Missing Only when Driving

760 views 5 replies 3 participants last post by  06ionbalt1986 
#1 ·
its a 2.2.... recently taken out and rebuilt for boost. After putting it back in it seems to misfire at about 2500 to 3000 and during decel. almost like it starving for fuel. (after this started i rechecked headbolts...end play and everything to make sure it not internal) seems like a fuel issue? or cat problem? please help
 
#4 ·
no tune..its 100% built to stock specs. so no reason it shouldnt run perfect on stock ecm. i have a knock code.. so maybe timing is making it misfire. knock code is pending but not a full on fault. maybe the knock sensor is bad and is retarding/advancing timing too much causing the miss?
 
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