E46 Fanatics Forum banner
1 - 4 of 4 Posts

· Registered
Joined
·
8 Posts
Discussion Starter · #1 · (Edited)
misfires in cylinders 5,6,and 4. Just had all four O2 sensors replaced with bosch. Ill try a smoke test soon after that I've read that it might be the MAF. Is their anything else I can try or check on my iCarsoft scanner? thanks!
 

· Premium Member
Joined
·
28,961 Posts
The problem was not the O2 sensors and not likely the MAF.

Most likely vacuum leak(s) or fuel pump, but could be the MAF, but do not replace the MAF until you know there are no other problems. Do not get rid of the MAF you replaced, you may find the replacement is a garbage Asian counterfeit.
 

· Premium Member
Joined
·
28,961 Posts
You could most likely rule out the fuel pump.

You really need to get the OBDFusion App, your tool will not likely give you Live/Realtime data, Freeze Frame data or Log. OBDFusion and the interface is $30 or less.

Suggest you read my comments in this thread - http://forum.e46fanatics.com/showthread.php?p=16727145
 
1 - 4 of 4 Posts
This is an older thread, you may not receive a response, and could be reviving an old thread. Please consider creating a new thread.
Top