P0154 - 02

[fornowh]

Replace my spark plugs today, after putting everything back and went on a test drive, it came back with the error P0154 -02 (bank 2 sensor 1), is this mean that the sensor on left side, first sensor. I clean the connections on the sensors but no luck it keeps coming back. Any help will be much appreciated. Thank you.

[gr8rcfan]

Exactly the same thing happened to me. Did you get an answer?

[JFP in PA]

P0154 indicates the interruption of the signal from the sensor, as would happen if it were unplugged. Go back to where you were just working while changing the plugs, you have disconnected or loosened part of the wiring harness.

[Wayne 962]

It could be a wire harness issue (not too common) in that area as well. Check to make sure the harness is not kinked or disrupted. It could be a problem with the wiring going to the sensor itself as well.