I found this thread: https://www.clublexus.com/forums/sho...ht=engine+code

It's for engine code 25.

Now one of the guys says to replace the front O2 sensors. Which exactly are these?

Do i need to replace the following:
http://www.lexls.com/mainoxygensensor.html
http://www.lexls.com/suboxygensensor.html

Thanks in advance...this will be a next sunday project.

Chris

 

The ones in the front are the main O2 sensors. They have 4 wires instead of 2 since there is a heating element in them, they are also more expensive.