N52 codes, rough idle, and a misfire

mahi77 · 04-24-2014, 09:24 PM

After a month or so of a dashboard with no errors, an engine compartment with no leaks, and lots of relief, I started my E92 earlier this week only to experience a rough idle, constant shaking, and a service engine soon light. I finally got around to checking the codes via INPA and I have attached an image that details the situation.

I'm hoping I just need to change a spark plug or coil but this is the first time I've experienced a misfire so I'm not really sure what to do or how to troubleshoot.

I cleared the codes and the SES light but sure enough it was back and the car is still acting the same.

Any help would be greatly appreciated!

330xtrai · 04-25-2014, 08:25 PM

you might wanna check your coilpacks heres a video om how

mahi77 · 04-26-2014, 12:33 AM

Quote:

Originally Posted by 330xtrai

you might wanna check your coilpacks heres a video om how

Thanks.
I did some research before posting and assumed it would be a coil and/or spark plug issue but I just wanted to make sure.

I'm going to swap them around to see if I can isolate the error and confirm the problem. I'll report back in a bit once I figure it out.

mahi77 · 04-26-2014, 11:04 PM

Swapped the coil on cylinder 2 for a new one and the problem seems to be fixed.

The new coil looks completely different compared to the old one. Apparently there have been several revisions to the part over the past few years.

I'll probably get around to replacing them all for good measure but next time I'll order online. I ended up paying $70 bucks for the coil at a local dealership but getbmwparts.com had them for $51 and free ground shipping. I didn't feel like waiting around since this car is my DD and I had already taken off the engine cover/cowling and air filter to diagnose the problem.

04-24-2014, 09:24 PM	#1
mahi77 Private 1 Rep 63 Posts Drives: E90 335i, E92 328i Join Date: Jun 2013 Location: Texas iTrader: (0)	N52 codes, rough idle, and a misfire After a month or so of a dashboard with no errors, an engine compartment with no leaks, and lots of relief, I started my E92 earlier this week only to experience a rough idle, constant shaking, and a service engine soon light. I finally got around to checking the codes via INPA and I have attached an image that details the situation. I'm hoping I just need to change a spark plug or coil but this is the first time I've experienced a misfire so I'm not really sure what to do or how to troubleshoot. I cleared the codes and the SES light but sure enough it was back and the car is still acting the same. Any help would be greatly appreciated! Attached Images
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04-25-2014, 08:25 PM	#2
330xtrai Do you even post BRO? 218 Rep 2,937 Posts Drives: 330xi Join Date: Jun 2012 Location: New Jersey iTrader: (1) Garage List 2006 BMW 330xi [0.00]	you might wanna check your coilpacks heres a video om how
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04-26-2014, 11:04 PM	#4
mahi77 Private 1 Rep 63 Posts Drives: E90 335i, E92 328i Join Date: Jun 2013 Location: Texas iTrader: (0)	Swapped the coil on cylinder 2 for a new one and the problem seems to be fixed. The new coil looks completely different compared to the old one. Apparently there have been several revisions to the part over the past few years. I'll probably get around to replacing them all for good measure but next time I'll order online. I ended up paying $70 bucks for the coil at a local dealership but getbmwparts.com had them for $51 and free ground shipping. I didn't feel like waiting around since this car is my DD and I had already taken off the engine cover/cowling and air filter to diagnose the problem.
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