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Old Sep 8, 2019 | 10:19 PM
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BMO
Joined: Oct 2011
Posts: 23
Likes: 2
From: Maryland
Default Re: Random misfire at WOT

Your are right. Mostly. I replaced two spark plug wires that broke when replacing the coils, but left the other ten. I’ll test them next time I’m in there.

I did did the mist test and no sparks. I have a CPS on order and will tackle it again next weekend. I doubt I’ll have time to tinker with it during the week without risking leaving myself without a car to drive. I picked up a RCM and MAP from the local pick n pull too (a whopping $10 for the pair).

Interestingly, I did the throttle reset and that cleared the check engine light. Of course, it came back on again when I push it near WOT and it started misfiring again. Had to stop, shut down, and restart to continue driving. This time it shows codes P0300, P0304, P0305 and P0306.
 
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