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Bank 1 & Bank 2

Help, Advice and DIY Tutorials on Volvo's P80 platform cars -- Volvo's 1990s "bread and butter" cars -- powered by the ubiquitous and durable Volvo inline 5-cylinder engine.

1992 - 1997 850, including 850 R, 850 T-5R, 850 T-5, 850 GLT
1997 - 2000 S70, S70 AWD
1997 - 2000 V70, V70 AWD
1997 - 2000 V70-XC
1997 - 2004 C70
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LBourque
Posts: 13
Joined: 23 July 2005
Year and Model:
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Bank 1 & Bank 2

Post by LBourque »

In my ODB II book the code came up PO171 (Bank 1). What is Bank 1 and Bank 2? Lou
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Jot
Posts: 593
Joined: 24 January 2005
Year and Model: C30 2010
Location: Orr's Island, Maine

Post by Jot »

PO171 is that the system is to lean. Bank 1 usually is the reference to the O2 sensor in front of the Cat where bank 2 is usually the reference to the O2 sensor after the cat
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