Hi everyone,

I'm a new sc430 owner and I love my car to death. My car is pretty much mint except the check engine light is on. (bought it like this).

Anyway, I brought my car to my buddys garage so that he could plug in the OBD 2 unit in to see what was wrong. The code P0155 came up "O2 sensor heater circuit bank 2, sensor 1"
Ive already bought the sensor, but I have no idea where the sensor should go. All this "upstream"/ "downstream" stuff is really confusing. I just want to know exactly where the sensor is so I can replace the bad one.

If anyone has like pics or anything, or experience on this, any info would greatly be appreciated!

Thanks,
Mike

 

be patient and dont worry these guys will hook you up bro. within a day or 2

 

There are 4 O2 sensors : 2 sensor1s before CAT and 2 sensor2s after CAT , band 1 on driverside and band 2 on passengerside . Your band 2 sensor 1 locates on passenser side and before Catalytic converter . That's all i learned from Master Pearlpower