Thread: I see DTC's for Sensor 1, Sensor 2, and....... Sensor 3?

Originally Posted by Fivefingerdeathpunch

Anything rear o2 related just set to 3, no error reported.

That won't make anything in the ECU freak out and throw off AFRs right? I thought I saw a post of some guy and a horror story about changing the rear O2 setting and then his AFRs getting out of wack. don't see how/why that would happen though...