can somone look over my latest scan i think my o2 sensor needs replaced

[72vega383]

hi I was wondering if someone could look over my latest scan. my car started running really rough. I think the bank 2 sensor 1 is bad. it always shows really low voltage and the fuel trims are don't move lower than 25. I get a code for too lean bank 2 and on one occasion I got too rich on bank 1 I cleared that one and it hasn't come back but the bank 2 too lean is still there.

just want to make sure its the o2 sensor that needs replace. I also unplugged it while it was running and the voltage went to 450 mv and stayed there. thanks

bank 2 lean.hplbank 2 lean.hpl

[dermotw]

Neither of those o2's is doing what I'd expect (i.e. switching between about 800-900mV and under 100). One is stuck on 20 and the other is flopping around a bit but not switching... Either they are both iffy or your tune is odd..?

kr D.

[72vega383]

Thanks for looking it over but before I go out and buy two new o2 sensors is there anything that I could check that could make the o2s function like that. I don't think I have any vacuum leaks, fuel pump is good, pressure regulator and filter are new. Fuse is good, wires are all good I traced them back to the computer. If my injectors were dirty could that cause it or would that just make it run poor and lean

[5FDP]

Swap sensors side to side and see if the issue follows it, if it does then you know that sensor is bad and it's not a wiring issue.