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Old 04-11-2019, 09:27 AM
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andrewwynn andrewwynn is offline
Join Date: Jun 2015
Location: Racine, WI
Posts: 4,640
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I think my lean codes mystery was solved last night when my fuel pump died. Hard failure just stopped while driving.

After it stalled I poked the fuel rail valve with a screwdriver and didn't even get a splurt.

The weird part is I thought I could hear the fuel pump hum but perhaps just too slow to generate any pressure.

Going with OEM brand this time. Knock off didn't last a year. I realized after I already had the knock off, so been mentally prepared for a while.

Funny thing is I actually thought to myself "if I don't have a vacuum leak, low fuel pressure will also cause a constant state of lean".
E53 / M54 2001 3.0i gas LHD (pair of them: his & her)
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