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BMW 3-Series (E90 E92) Forum
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E92 N52 problems
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02-24-2020, 07:43 AM | #1 |
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E92 N52 problems
So I have had an intermittent problem here lately. I have noticed that the high voltage discharge message appears a lot lately and when I full throttle my car it stutters and shakes then picks speed back up and then a check engine light comes on and at idle it is running terrible. I'll cut the car off and start it back and it runs fine the car is fully warmed up when it does it. I change my oil regularly and have not scanned the codes but there is not a check engine light on at all only when it happens any ideas on what it could be ? Anything helps thanks.
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02-24-2020, 07:54 AM | #2 | |
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Drives: 2009 BMW 328i Convertible
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Location: TX
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02-24-2020, 07:56 AM | #3 | ||
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02-24-2020, 11:01 AM | #4 | |
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A fault such as "misfire" which occurs at high RPM or Load is often intermittent. When the DME senses a "misfire" of any significant duration, it shuts down the injector to that cylinder, to prevent unburned fuel from being dumped into the Catalytic Converter causing an internal "Cat Fire" and damage to the catalyst. Obviously with one or more cylinders NOT firing at all, the engine will be very rough. If the DME does NOT return to Normal Injector Function in 30 to 60 seconds of low RPM operation, switching Ignition OFF, and then re-starting will restore normal function, at least until the NEXT time you do WOT acceleration in 1st & 2nd. So just get the codes read, INCLUDING Freeze Frame Data if possible ("Snapshot" of Engine Temp, RPM, Load, Voltage, etc. at the moment the code was saved) and post that info here. Easiest/quickest way to post Scan Tool Info is to take a photo of each Tool Screen, and post that jpg/png here. George Last edited by gbalthrop; 02-24-2020 at 11:07 AM.. |
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03-09-2020, 05:50 PM | #5 | ||||
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Hey George I have pulled the codes at home these are it I know one is a misfire then the rest are variable valve timing codes I jsut want some reassurance before I start doing anything P0303 P102C P1012 P1014 P102B P1006 |
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