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This is the place to get answers, opinions and everything you need related to your E46 (sedan, coupe, convertible and wagon) BMW!

 
 
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Old 02-09-2012, 09:58 AM   #1
Jono149
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Join Date: Oct 2010
Location: Overland Park, KS
Posts: 22
My Ride: 2001 330ci
330ci Power Loss / Limp Mode?

My car (2001 330ci) has been acting up occasionally for the past several months. It will basically go into (what I think is) limp mode. It just doesn't have nearly as much power, almost like not all the cylinders are firing although it still runs smooth.
The service engine light came on about the time it started acting up, I ran the codes and it kicked back all 4 O2 sensors and the camshaft position sensor (all of which I replaced, but it's still acting up). I also replaced the spark plugs at the same time.
It doesn't do it every time I start the car, but it's happening more and more often. Sometimes it will have to crank a couple of seconds before the engine starts.
The only other thing I can think to try is replacing the ECU.

Any other ideas? Thanks in advance for your help!!!
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2001 330ci, diagnostic, ecu, limp mode, power

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