Thread: Misfire help!
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Old 11-15-2019, 12:53 AM
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mtbtim mtbtim is offline
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mtbtim mtbtim is offline
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Real Name: Tim
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My suggestion is to do some diagnosing first before throwing money at it. You're having a double misfire on neighboring cylinders. There's been countless people who have started out their search for an answer by changing out perfectly good spark plug wires and coils just to find out the culprit was something else entirely. I've been guilty of throwing parts at problems myself.

Reset the CEL, swap the position of the one know good coil pack on cylinder #3 with either the coil pack on cylinder #1 or cylinder #5 and see if the misfires change. If nothing changes, it's not the coil packs. The wires will be harder to swap because they are different lengths. If you have a friend that also owns a 3rd Gen, maybe you could borrow a couple of his wires to eliminate the possibility of a double spark plug wire failure. Like I said earlier, I find this highly unlikely that 2 wires would fail at the same exact moment.
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