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P0156 Diagnostic Trouble Code Discussion for June 2016

Heated Oxygen Sensor (Bank 2 Sensor 2) Closed Loop Fuel Control


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Trouble Ticket Help Requests for DTC P0156
Help Request Posted
2011 Audi Q7 Premium 3.0L Excessive Emissions, Surge, Hard Starting Hot VIN: WA1CGAFE6B
P0156: Bank 2 Probe 2 Electrical fault in curcuit. Car came in with hard starting and running rich. First thing we plugged off the evaporative emissions purge valve with not change also replaced just in case but no change. Check manometer and found what we though was excessive crankcase vacuum. 120 millibar wh...
June 28, 2016