scoobaru88
Active Member
- Thread starter
- #1
So I’ve been trying to figure out this annoying misfire I’ve had for a couple weeks. It only showed a check engine light twice, but in forscan mode 6 scan it picks up counts on all cylinders, highest being cyl4 and second highest being cyl3.
Thought it was bad gas so I drained tank and switched back to e85.
I’ve done new plugs, new injectors, checked fuel pressure, sent a log to tuner and they said everything looks good. Tried crank relearn, and kam reset. Checked the imrc on intake manifold(not broken). I was thinking possibly coils, I swapped cylinder4 with cylinder 5 and it made no difference in the counts. Misfire happens about 1500rpms, not bad but can be felt while driving. Car is driveable as is.
Anyone have other ideas? Gonna do compression test tomorrow but unless the whole engine is done I don’t see it being a problem (misfire counts on all cylinders).
2019 Mustang GT, ess g3x 100mm pulley, fic1200 injectors, four 285 fuel pumps, bmr solid motor mounts, 2m headers.
Thought it was bad gas so I drained tank and switched back to e85.
I’ve done new plugs, new injectors, checked fuel pressure, sent a log to tuner and they said everything looks good. Tried crank relearn, and kam reset. Checked the imrc on intake manifold(not broken). I was thinking possibly coils, I swapped cylinder4 with cylinder 5 and it made no difference in the counts. Misfire happens about 1500rpms, not bad but can be felt while driving. Car is driveable as is.
Anyone have other ideas? Gonna do compression test tomorrow but unless the whole engine is done I don’t see it being a problem (misfire counts on all cylinders).
2019 Mustang GT, ess g3x 100mm pulley, fic1200 injectors, four 285 fuel pumps, bmr solid motor mounts, 2m headers.
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