Need help - Persistent MAF error code - The Unofficial BMW M5 Messageboard (m5board.com)

lsdvm · 26th October 2007, 17:33

Hey all, I'm having some trouble with a recurring MAF malfunction on the passenger side (cylinders 5-8) that I can't seem to get resolved.

I've changed out 2 MAFs on that side, and even swapped them L to R (driver to passenger), and am still getting the SES light and error code (#39 on Peake tool).

Took the car to my Indy shop and they analyzed both MAFs (brand new) which are working fine, checked the resistance in the connectors and wires, and haven't been able to determine what's going on.

I'm not sure what the next step should be as I've already gone through 2 sets of MAFs and am still getting the error.

Anyone else experience anything like this?

Thoughts? ideas? Suggestions?

Thanks,

Trini7919 · 10th December 2007, 07:38

i know exackly what it is had the same problem same error codes and went through 4 sets of mafs trying to figure out what it is . its the camshafts positioning sensors .there are 4 in the m5 2inlets and 2 outlets .( i promise thats what it is )