Im trying to work out some kinks in my tune and just need to check my o2 sensors at this point. Im assuming i pull the sensor. But what am i looking for to tell me its not upto par? Thanks

Matt

 

A quality scanner with live read outs will tell you.
Sometimes your MIL light (Check Engine Light) will illuminate if they are bad.

Jim

 

Alright. Well no lights have come on. I may still pull them to check for anything unusual. I had Justin log it with efi live. Wouldnt that show if an o2 wasnt functioning properly?

My problem is i have fried two sets of cats. I have since put a new screened MAF, hoping that may help with a lean issue that may be burning up my cats. Ill start another thread if that happens.

Matt

 

Put in new ones... in the long run you probably need them anyway... make sure not to touch the sensor portion with your skin.....

and if it runs better after putting the new ones in theres your answer.... and since you are tuning, and im guessing they have a few miles on them... your gonna want the most accurate reading possible, otherwise all of your datalogging is a complete waste