2B3A fault code

[135imichael]

So today me and my uncle took my car out. He drove it pretty hard, but after the drive we could smell something possibly buring...

Later I decided to check the error codes using the JB4 and now I had 3 error codes. Previously I would have 2 error codes from the catless downpipe but now an error code that is "2B3A" is appearing. After searching I found that it means cylinder 6 miss fired.

I currently have catless downpipes, chargepipe/BOV, JB4, and intake. The car is also rattling very loud from the wastegates and is at 55,000 miles. What do you guys suggest I do? Switch back to stock and bring it in? Should I be worried about the cylinder miss firing?

Thanks for any input.

[BMist371]

Burning smell is probably the brakes. Seems these cars fade quick. Mine does it alot. Rattle=replace turbos which isnt going to be cost friendly. Misfires are always a plug/coil/or injector problem. Probably plugs since Terry recommends plugs every 25,000 on a jb4 vehicle. But it could be coils or injectors as well. Switching it back to stock wont matter unless you are CPO. At 55,000 you should be out of warranty. In that case, you'll pay out of pocket anyways and there won't be a point in returning stock.

[BMist371]

As a P.S.,

You could try returning stock and pleading with bmwna to at least pro rate your turbos since it was within 5,000 miles of warranty if you arent cpo.

[ttbullet]

Don't the turbos have extended warranty upto 8 years or 82000 miles.

[e36addict]

Originally Posted by ttbullet

Don't the turbos have extended warranty upto 8 years or 82000 miles.

Yes they do. OP, I would either put the car stock or find a mod-friendly advisor/tech combo to get those turbo's replaced while you can.