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P0151 Diagnostic Trouble Code Discussion for February 2013

Air Fuel Sensor (Bank 2 Sensor 1) Circuit Low Input (Lean Shift)

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Trouble Ticket Help Requests for DTC P0151
Help Request Posted
2006 Mazda 6 S 3.0L MIL Lamp on
P0151: Heated Oxygen Sensor (Bank 2 Sensor 1) Circuit Low Voltage. Another tech at shop is working on this mazda. Both upstream o2 sensors stuck at .04 at idle. Smoked intake found intake hose cracked replaced hose sets same codes. Vehicle had aftermarket massairflow sensor which read 2.7 grams per second at idle replaced wit...
February 07, 2013