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P0172 - bank one too rich

 
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Frank4202
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2004 Chevrolet Impala
1997 Chevrolet Corvette


PostPosted: Sat Aug 23, 2014 3:43 pm    Post subject:  P0172 - bank one too rich Reply with quote

3 months ago I had a misfire so I replaced the plugs wires, and o2 after the cat. Today I got this code. No change in drivability. Any ideas?

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98ss
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2002 Chevrolet Impala
2011 Chevrolet Silverado


PostPosted: Sat Aug 23, 2014 3:59 pm    Post subject:   Reply with quote

You can try cleaning the MAF sensor. Also, maybe try ohming out the injectors to see if one or more are clogged.
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whitelightnin04MC
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Location: I got big balls and dey jangle like a lotta keys.

2004 Chevrolet Monte Carlo
2001 Chevrolet Monte Carlo
2009 Subaru Impreza


PostPosted: Sat Aug 23, 2014 11:13 pm    Post subject:   Reply with quote

Post cat O2 sensor doesn't affect fueling. The O2 sensor in the rear manifold is for AFR.

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