Check engine/ 3 codes

MK335i · 11-17-2014, 11:10 AM

Audi A4 tried to race me and embarrassingly as soon as I went to take off at the green light my check engine light flashed and the car was struggling to accelerate and very jumpy idle. I turned car off and on and all was normal but check engine light still on. I plugged the cobb in and I got 3 codes, cylinder 3 misfire (2x), and fuel pressure sensor, electric (1X). I think its the LPFP sensor because the HPFP has been replaced.

Car is running fine now ever since, no rough idle or rough acceleration. I am afraid to floor it though and try it again.

I have an appointment this Friday to replace all brakes and I ordered new plugs hoping that will fix it since the previous owner never changed the plugs (56K miles now)

Anyone else experience this?

335NJ · 11-17-2014, 12:30 PM

Start with new plugs, if they have 56k on them, they're past due. Especially if it's been tuned for at least half of that time.

11-17-2014, 11:10 AM	#1
MK335i Private First Class 17 Rep 133 Posts Drives: 2009 BMW 335i Join Date: Apr 2014 Location: Louisville, Ky iTrader: (0)	Check engine/ 3 codes Audi A4 tried to race me and embarrassingly as soon as I went to take off at the green light my check engine light flashed and the car was struggling to accelerate and very jumpy idle. I turned car off and on and all was normal but check engine light still on. I plugged the cobb in and I got 3 codes, cylinder 3 misfire (2x), and fuel pressure sensor, electric (1X). I think its the LPFP sensor because the HPFP has been replaced. Car is running fine now ever since, no rough idle or rough acceleration. I am afraid to floor it though and try it again. I have an appointment this Friday to replace all brakes and I ordered new plugs hoping that will fix it since the previous owner never changed the plugs (56K miles now) Anyone else experience this? Attached Images __________________ 2009 BMW 335i - Sport Package - Louisville, KY
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11-17-2014, 12:30 PM	#2
335NJ Colonel 533 Rep 2,872 Posts Drives: 2008 335i 6MT E90 Join Date: Feb 2014 Location: NJ/Philadelphia Suburbs iTrader: (1)	Start with new plugs, if they have 56k on them, they're past due. Especially if it's been tuned for at least half of that time.
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