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P0140 Diagnostic Trouble Code Discussion for January 2013

Heated Oxygen Sensor (Bank 1 Sensor 2) Insufficient Activity

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Trouble Ticket Help Requests for DTC P0140
Help Request Posted
1998 Volvo S70 2.4L MIL Lamp on VIN: YV1LS5576W
P0140: 02 sensor circuit no activity detected bank 1 sensor 2. ... hard time. It came in with an exhaust leak in the flex pipe and o2 sensor codes. So we replaced the pipe and erased the codes and they came back. We then replaced both sensors sent it out and it came back with P0133. we checked the wiring, watched the perf...
January 14, 2013
2001 Nissan Pathfinder LE 3.5L Hesitation, MIL Lamp on VIN: JN8DR07Y81
P0140: Heated Oxygen Sensor (Bank 1 Sensor 2) Insufficient Activity Detected. ... listed above. Swaping plugs and coils did not help as all I have now is a p0300 random misfire listed. Very intermitant and unable to get it to act up. Fuel pressures and exhaust backpressure all seem to be in spec. Checked ...
January 23, 2013