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E39 (1997 - 2003)
The BMW 5-Series (E39 chassis) was introduced in the United States as a 1997 model year car and lasted until the 2004 when the E60 chassis was released. The United States saw several variations including the 525i, 528i, 530i and 540i. -- View the E39 Wiki

 
 
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Old 11-09-2012, 05:08 PM
gomolka30 gomolka30 is offline
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Location: Philadelphia
 
Join Date: Nov 2012
Posts: 105
Mein Auto: 2001 530i
Three OBDII codes (running lean)

So I just scanned and reset my codes. I'm not sure if the software makes them appear is sequence or just by numerical order, but they were:

P0171
P0174
P0313

I'll check for the 1st code when the SES light comes back on. Luckily I have a can of MAF cleaner hanging around here, and I've never tried using this stuff before. Maybe I'll get lucky.


Otherwise the car runs pretty darn good when you give it some throttle. You can't sense a missfire when you mash the gas.

It could possibly be missfiring at low throttle, because I feel a little vibration/rumble which i suspected to be engine mounts. So more info to come. Until then, any ideas? Does anyone have a diagram of all vacuum hoses on the m54b30?
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