First off, Hi guys!
A lot of good info here.
I have a code that I have no idea what it means, pi 1423.
I looked up what the generic code means, egi functionality test failed??
Anyone have a clue?

( I already did a search for 1423 in the forums with no dice)
Some background.
I have a 1998 e36 318i with m44 motor,
recently replaced the crackcase vent.
Thanks,
gzero