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BMW 3-Series (E90 E92) Forum > BMW E90/E92/E93 3-series General Forums > General E90 Sedan / E91 Wagon / E92 Coupe / E93 Cabrio > N53 E92 330i misfire codes and rough idling trouble. HELP!



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      11-11-2024, 02:03 PM   #1
jas91
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N53 E92 330i

Hi guys. I picked up a 330i e92 running perfectly. The next day on a cold start the car started to judder and is now rough idling with the codes p0305 p0306 and p0300. Checked coil packs and spark plugs. No oil leaks anywhere. Service history says fuel injectors were inspected and changed about 10k miles ago. Coil packs and spark plugs changed last year. Took it to someone who said it could be the timing chain due to the p0300 random misfire code. I was suspecting injectors but it doesn’t make sense. Anyone have any other opinions? Would really appreciate any feedback.
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      11-25-2024, 08:15 PM   #2
jas91
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So update…coil packs, spark plugs and injectors in cylinders 5 & 6 replaced. Working fine for a couple of days then same slight judder and engine light. Weirdly enough the judder is slightly better and the engine light doesn’t always turn on. I’ve noticed if I let it warm up and turn it off and on again the engine light disappears and idle is perfect. Any advice?
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