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Old 11-28-2012, 11:48 AM
wdaveweaver wdaveweaver is offline
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Mein Auto: 2004 330i ZHP
Need help with codes?


The car thew a couple codes today - PO171 and 174 for left and right bank lean. She's been driving fine (maybe a little down on power) and the only symptoms are rev on start and idles a little rough only at start up. Just started today and 80k on the odo. Where can I check and is this my O2's? Any advise is much appreciated.

Gig'Em Ags

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