Engine trouble codes

[jhnhopkins]

Just had the baby into CAA Auto care shop yesterday. Check wallet light came on two weeks ago, so booked the truck in, then the light went out, cancelled appointment. Then the light went on again, booked her in, then on the way in, the light went out again. The tech plugged the code reader in and there was nothing there, not even in the history. Next day the light came on again, took her in on the way home from work and code P0031 came up O2 sensor bank 1 voltage low. 2 hours and $260.00 CDN + tax to fix. He had to disconnect the front drive shaft to access.
I think your list is correct on that one dhh3. By the way, there are 4 x O2 sensors and all the same part #.

[dhh3]

Originally Posted by jhnhopkins

I think your list is correct on that one dhh3. By the way, there are 4 x O2 sensors and all the same part #.

This is good to know! I finally did something right.

I just looked under my Nitro. There is a small catalytic converter on each bank of cylinders. I wonder if there are 2 O2 sensors on each side, one in front of and one behind each catalytic converter? It was hard to see, but the drivers side converter is really close to the front drive shaft.

[Dutchty]

Originally Posted by dhh3

I wonder if there are 2 O2 sensors on each side, one in front of and one behind each catalytic converter? It was hard to see, but the drivers side converter is really close to the front drive shaft.

Don't wonder, it is

[dhh3]

Thank you. You made me learn something new yesterday. I like that.