[Josh1a1h]

Boffins Needed!

I have a 2007 335i e92

JB4 Map 5 - Shell V Power
BMS DCI

65,000 miles
Had Turbos warranty replaced 1 month ago.



I was on my way home on a relaxed drive. I wanted to pull softly to overtake a lorry whilst going up a small incline.

All of a sudden, Engine light came on. I did not even attempt to pull hard to see if i had loss of power. But the engine was immediately running rough. I crawled home for a mile or so under 2k rpm.

I tried to read the codes on my JB4 once i was home. But i am unsure if i read it correctly. I have a vid below of what i did. Please direct if that is right and help read the code.

There is also a short video of my car idling.

I am unsure what the issue may be.
I was just about to install my VRSF DPs, i can take the car to BMW if necessary, but i will pull the JB4 and DCI. Need as much info as possible so the stealers dont try to mess me around.

Engine Code -

Engine Rough Idle -

[Josh1a1h]

Sorry guys but need to bump desperately. I may be forced to crawl the car to the dealer or an Indy... But unsure what the code is or how to read it.

[Joe-]

Originally Posted by Josh1a1h

Sorry guys but need to bump desperately. I may be forced to crawl the car to the dealer or an Indy... But unsure what the code is or how to read it.

I don't have a jb install so I honest don't know do you know what the code translates into?

[TheTal0n]

tuned but you dont have a scan tool?


plug/coil?
intake leak.

[Josh1a1h]

Was the way I was reading the codes correct in the video above?

[Josh1a1h]

Worked it out.

Miss fire in cylinder 4.

Going to have coil packs and all plugs replaced. Hopefully that should solve the problem.

[phillip@bmpdesign]

Or just the coil pack and plug in cylinder 4. Fairly rare for packs to go out, let alone all 6, if you replace with OEM then just the 1 should be fine. And this is a relatively general fix for a problem when you aren't sure what exactly caused it, so no sense spending unnecessarily.