Hi everyone,

After reading pages and pages and pages of threads about replacing O2 sensors, I am still absolutely stumped.

I have a '95 X300 3.2L. It has run rich since I purchased it 2nd hand, and is now at the point where she stalls at idle and blows unburnt petrol out the exhaust.

I've found a P1138 fault code with an OBDII and then I just got lost in a world of threads.
I understand there is a replacement O2 sensor required? Maybe multiple? Are they all the same?
Can someone link me a parts number so I can purchase online?
Is there anything else I should be replacing since shes been running rich? (I've got new plugs and a fresh air filter already)

Thank you very much
Taylor