Code 13 - Oxygen Sensor (O2) - No Signal - VS V8

[Dinwoodie]

Hey everyone, my car has been playing up lately (Electrical Problems) i did and error check today and it came back with a code Code 13 - Oxygen Sensor (O2) - No Signal. What would this be doing to the car if this wasn't working.

[Ron41]

I just replaced both o2 sensors [ one was stuffed ] it has made a huge positive differance to the amount of fuel I use.

[Not_An_Abba_Fan]

With no O2 signal the ECU runs the engine a lot richer for safety as it can't read the exhaust gas to trim the AFR's properly. So in short, it will run rich.