02 sensor

[Moriarity81]

i was just woundering if 02 sensors will affect gas mileage? i have no cats on my car therefore it threw a engine code the code is for the 02 sensor is this something i should worry about or no??

 

[mechguy]

Yeah, front 02 affects fueling. Rear 02 is used to provide feedback on catalytic function.

Have a look: http://www.grandprixforums.net/decatting-grand-prix-rear-o2-sensors-47712.html

There are more 02/Cat threads that would be worth your time to look into using the search.