Jonnybob

Had codes P1150 & P1155 so, of course, I did a search of the forum and concluded it was bank 2, sensor 1. Bank 2 was reported to be the bank facing the front of the car.

Easy enough repair. Ten minutes in and out with cleanup. However, after clearing the codes it is still throwing a P1155 (P1150 is gone)

I ran an ohm meter on the old and new sensors (all possible combinations). Only the new sensor had resistance, 4.5 ohms across the two black leads. My best guess is that this is the resistance of the heating element

Looking for suggestions for my next course of action.

Did I change out the wrong sensor?
Is there a common spot for the wiring to cause an 'open' circuit?
Did I get a new sensor which is bad?

Any assistance appreciated.

Jonnybob

carguy07

Did you use an OE/Denso sensor or aftermarket?

Jonnybob

Aftermarket....

I know, I know.

matts6887

If i were you I would consider changing out that aftermarket sensor to a oem sensor because sometimes the aftermarket stuff can cause "issues" which it appears you already know about.

artbuc

What brand? It may help others to know. Thanks.

Jonnybob

It was a no-name $32 part off ebay with a six-month warranty. Before I warranty the part I like to be sure I haven't missed something..

artbuc

Thanks. Yep, this sensor had almost zero chance of working.