Question about 2001 Volvo V40
Showing 2 codes po101 and po172
P0101 : Mass air flow censor, Air intake is blocked or the sensor is nackered.
P0172: System too rich bank 1. There's too much fuel, probably to do with the air fuel mix. If you sort the air flow meter that'll sort the two.
Posted on Apr 27, 2009
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Posted on Jan 02, 2017
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