E46 | Forum profile

Hi all, Been having problems with my 2002 325i. It's a five speed manual and whenever the car gets to around 3500-4000 RPM's the entire car essentially bogs down. It's as if the car isn't receiving any gas past this threshold. In second gear the RPM's refuse to get past 4000 RPM's even with the gas fully depressed. It has similar problems in every other gear, just second was the gear I chose to test it in. The...

Interesting thing happened to me this week. I installed an intake to the car on sunday and this days the car has had an improvement. When I turned the car on, rev went really low and had to start the car again but now when I turn the car on revs still go low and then normal again but doesnt turn off. Does this help a little on figuring out what my cars problem might be?

I take that to mean the emissions monitoring functions of the engine management system is hunting for a suitable fuel/air mixture to set the idle, and can't do so, probably because of a vacuum leak, as Big Evil suggested. O2 sensor may also be at play here.

Need to sell this manual, see here: Classifieds, Bentley Service Manual Dough

good knowledge guys i like