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Old 04-21-2019, 01:59 AM   #227
Registered User
Join Date: Mar 2017
Location: Surrey, UK
Posts: 662
My Ride: 330Ci / 320Ci
Transmission: 5MT
Getting more and more of those misfires on various cylinders. Did a 60 mile drive yesterday in mild 20C weather. Check engine light came on when stopped in traffic.

Have read various other threads with a similar pattern; check engine light occurs after a long drive and whilst moving at low speeds.

Stopped the engine and pulled the codes. Fuel cutoff on cylinders 5 and 6. Restarted the engine and drove another 150 miles with no issues.

Any suggestions? Previous threads suggest:
Camshaft position sensor
Check for vacuum leaks

I also have a thermostat error and have had that for a couple of years. I have the new thermostat but haven't fitted it yet. Perhaps the engine isn't getting up to temp and my plugs are blackened. Last time I had a irremovable misfire it was the plug in cylinder one which was completely black. Replacing it fixed the issue.

Feedback welcome. Not sure where to start!

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Last edited by bendoscopy; 04-21-2019 at 02:00 AM.
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