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P0031 Diagnostic Trouble Code Discussion for April 2008

Air Fuel Sensor (Bank 1 Sensor 1) Heater Control Circuit Low Voltage

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Trouble Ticket Help Requests for DTC P0031
Help Request Posted
2000 Mazda MPV DX 2.5L MIL Lamp on VIN: JM3LW28G6Y
P0031: 02 sensor bank 1 sensor 1 heater control circuit low. ... in with mil lamp on codes p0031. o2 sensor previously was replaced along with intake manifold runner control unit. imrc fixed the other code (p1512). now the po031 has returned, checked to make sure correct 02 was replaced and verified that it is correct. ...
April 01, 2008