I changed my front o2 sensors and have dummies on the back, I don't have a check engine light but I'm getting these two codes P0174 (system to lean bank 2) and P0430 (catalyst system efficiency below threshold bank 2) now I don't have any cats but I have the mil dummy plugs on and have changed the both front o2 sensors and cleared it but these keep coming up and I need to pass emissions ASAP please help!!
Well its telling you the drivers side bank of cylinders are running lean also that its not seeing proper emissions drop between bank 2 sensor 1 and bank 2 sensor 2. Could have a bad simulator on the bank 2 side. Have you hooked up a scan tool for live data?
the simulators are new and those were off of my buddies scanner I just hope nothing's cracked anywhere?