Code P0141, O2 sensor heater circuit malfunction?

MELVIND0O92

MEMBER
2007 HONDA RIDGELINE
3.5L
V6
4WD
AUTOMATIC
197,000 MILES

I have the vehicle listed above that recently got a new exhaust from the cats back installed as well as both bank 1 o2 sensors. Within five seconds of starting the vehicle the check engine light comes on with a p0141 code. I have swapped the bank 1 sensor 2 with two different new o2 sensors and still get the same code. The LAF fuse is good, and it has a new LAF relay also. I looked over the wires for the downstream o2 sensor and everything looks to be okay. It has the original catalytic converters on it still. I am kind of at a stand still at the moment with this vehicle. Any help would be greatly appreciated. Thank you

3 Replies

KEN L

ADMIN

When doing the exhaust work there a chance you got the bank 2 wiring on bank 1 and vice versa?

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Sunday, October 16th, 2022 AT 11:23 AM

MELVIND0O92

MEMBER

The owner of the vehicle had a shop do the exhaust work, so I am not sure. They did not replace the bank 2 sensors.

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Sunday, October 16th, 2022 AT 11:38 AM

KEN L

ADMIN

The P0141 code is a problem with the O2 bank 1 sensor 2 heater circuit. So, this will be the sensor or the wiring. I would raise the car up and check the work that was done.

https://www.2carpros.com/articles/jack-up-and-lift-your-car-safely

And this guide can help walk you through:

https://www.2carpros.com/articles/how-to-replace-an-oxygen-sensor

Here is the location of the sensor in question so we are the same page on its location. This sensor is behind the catalytic converter. Check out the images (below). Please let us know what happens.

Image (Click to enlarge)