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7 Series - E38 (1995 - 2001)

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Old 10-04-2012, 07:36 PM
iponnet22 iponnet22 is offline
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Location: SoCal
 
Join Date: May 2012
Posts: 6
Mein Auto: 2001 525I
I only get P0173 DTC

1998 740i, car idles good runs and drives great.

I have looked it up and its fuel trim issue bank 1, I've been doing alot of searches and it seems most people get P0173 and also P0170 which is for bank 2! and their problems seem to be anything from vacuum leaks to MAF or intake gasket leaks.

So my question is since I only have P0173 does that narrow it down at all? Is my most likely culprit a leaking intake manifold gasket on bank 1?

btw bank 1 is on the passenger side correct?

thanks in advance,
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