Has anyone had success in fixing the pending P0134 / P0135 codes with an ultragauge?
I installed an ultragague about a year ago, I think. I don't recall when I started getting the pending P0134 code, but a while back I decided to try to fix it. I did some testing with a multimeter and thought I had a bad O2 sensor, now I question that. I recently bought a sensor and replaced the one throwing the P0134, then I started getting a pending P0135. I swapped front O2 sensors side to side, and the pending P0135 code stayed on bank 1. I looked at live data, the front O2 sensors are oscillating as I think they should. I've never gotten a code on the truck, just the pending code on the ultragauge. I've checked the heater element resistance on the sensors, they range from 2.4 ohms to 2.8 ohms. I have not been able to find a spec for the resistance value. I've read the posts I can find on this, but I have not seen anyone report success on eliminating the pending codes.
I'm starting to think I should just silence the alarm and not worry about it............................

 

That’s what I do for pending codes. If it’s running in closed loop and not throwing a CEL light I figure it’s not worth wasting my time over.