jimbo409

Looking to buy a sc and the service records from the dealer show that the Bank 2 sensors 1 oxygen sensor needs replacing NS Sya it is a heater circuit
another sensor bank 1 sensor 2 heater my question is how many sensors are on these cars and it seems like another heater sensor,please explain I am confused,does this mean the heater didn't work

Coleroad

There are four, two pre catalytic converter two post converter. Oxygen sensors start working properly at around six hundred degrees. The heater in the sensors help get it up to temp quicker. It's not a big deal that it needs to be replaced.

Coleroad

This will explain all you need to know.

http://www.linnbenton.edu/auto/scope/o2.htm

This basically states what I had posted in a thread a month or so ago about o2 sensors.

https://www.clublexus.com/forums/sc4...r-pre-cat.html

jimbo409

thanks so much,I love this forum

Coleroad

This forum is kinda like a big family. We try to take care of each other. There may be a spat here and there but it's quickly smoothed over. Everyone here is awesome and makes it great.