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P0154 Diagnostic Trouble Code Discussion for August 2009

Heated Oxygen Sensor (Bank 2 Sensor 1) Signal Remains At Center

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Trouble Ticket Help Requests for DTC P0154
Help Request Posted
2004 Chevrolet Express 3500 6.0L Poor Idle Quality, MIL Lamp on VIN: 1GBHG31V64
P0154: Heated Oxygen Sensor (Bank 2 Sensor 1) Insufficient Activity. when this truck was brought to us 3 months ago mil light on with a p0157 low b2s2 activity and oe plugs at 85000, we thought it to be a no brainer ,full tune up and 4 new 02 sensors.flash ahead 2 months and we r chasing multiple o2 and lean exhaust codes.repla...
August 04, 2009