Burning Fail Cylinder # / Lambda fault code.

[giggity]

Hi guys,

I'm back in a 330i again, after the first one was a bit too leggy and a disaster. This one is much better but is cheap because of the fault code in the title stating Burning Fail Cylinder and a Lambda fault, (not sure of the exact code) it's a bit lumpy as a result.

Some initial googling finds me the fact that this is either a vacuum leak, spark plug / coil pack and possilbe MAF issue.

Has anyone suffered this issue or got any advice where to start?


I'm based in West and South London if anyone has any decent suggestions and if anyone has any decent forums to suggest for UK E46 advice.

Cheers all.

[ADEuk]

Have you got an obd code? Check the earth straps on the coil pack looms, and also check the condition of the insulators on the coil packs themselves.

[stevesingo]

First thing first pull the spark plugs and inspect.

If there is an odd one out, the cylinder from which it came is where you should focus your attention.

[giggity]

Air intake boot was split, post MAF.

Replaced them all, cleared all codes. Running well now.