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PO 171 ODB II

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
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PO 171 ODB II

Post by LBourque »

Has anyone replaced the MAF. It seems that my ODB II fault indicates a lean mixture, and that the MAF controls that air fuel mixture. Any way to visually inspect the MAF?
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White850Turbo @ Work

Post by White850Turbo @ Work »

MAF is one of several things that determines A/F ratio. An MAF on its last leg usually results in a rich condition and not a lean one. A more likely culprit would be the o2 sensor.
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