P0171/P0174 troubleshooting - Bimmerfest - BMW Forums

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E39 M5 (1998-2003)

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Old 07-21-2010, 04:44 PM
ARX3 ARX3 is offline
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Location: Reston VA
Join Date: Dec 2008
Posts: 274
Mein Auto: '14 i3, '08 535xi, '07 X3
P0171/P0174 troubleshooting

Anyone in Northern VA with '98-'03 M5 willing to swap out one of the Bosch MAF sensors this weekend to troubleshoot the OBDII codes I'm getting? I've already cleaned it and also replaced both pre-cat O2 sensors. I'm also going to replace the fuel filter tonight. I'm in Vienna VA near Tysons Corner. I have OBDII scanner so should take less than 30 min to run the tests.

BMWCCA #135536
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