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P0050 Diagnostic Trouble Code Discussion for July 2011

Heated Oxygen Sensor (Bank 2 Sensor 1) Heater Control Circuit Malfunction

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Trouble Ticket Help Requests for DTC P0050
Help Request Posted
2002 Audi A4 Quattro 3.0L Poor Idle Quality, Stall, Misfire, Poor Fuel Economy, MIL Lamp on VIN: WAULT68E62
P0050: o2s21. Vehicle stalled on road, can get it started but it is running very rich(fuel out tailpipe) MAF reads 0, Replaced MAF and still get a 0 reading. Also has P0261 cyl 1 injector open, P0414,P041 secondary air injection, P445,P2401 evap system codes
July 20, 2011