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Old 11-17-2012, 07:05 PM
gomolka30 gomolka30 is offline
Officially Welcomed to the 'Fest
Location: Philadelphia
 
Join Date: Nov 2012
Posts: 105
Mein Auto: 2001 530i
So I let my tank level drop to below 1/4 and my SES light came back. I haven't read the codes yet, but assuming they are the same, do you think lower fuel levels can cause the engine to run lean? To me, that sounds like a weak fuel pump.

I'll get a fuel pressure gauge and test. Is there a specific type that is compatible with the m54?

I also like the idea of changing the fuel filter, inexpensive and a good starting point.
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