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Misfire on 6 and 8

757 views 3 replies 2 participants last post by  Snowbound 
#1 ·
Scan showed misfire on 6 and 8. Swapped 2 and 4 to those spots , still misfiring 6 and 8. Changed ficm and injector harness and still misfiring on 6 and 8. No real spikes or lows on power balance and no other codes. What else should I be looking at ? It's been a long ordeal !
 
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