Reads 02 sensor circuit malfuncation bank 1 of 2. What does mean? I replaced BOTH sensors a week ago. NOPI has the front sensor for $37. and Thepartsbin.com has the rear for $100.

I think you might have mixed up the wires or one isnt connected all the way, and for a little more help its the wire that heats the 02 sensor. I forgot which wire is which but some one else will chime in and help me.

1998 dodge avenger 4 cyl AT
Mods are:
Not enough

Thnak you, found my broken wire today. All is well.

what kind of splicing do you have to do with the nopi o2 sensor, becasue I need a new one too.

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