So I talked to the guy who tuned my car today (chris at EFI in bethel ct)and he said that he deleted my 2nd o2 sensor from the ecu or turned it off, I don't know how it works but anyways... This was not a problem till I had to go through emissions. He said I could go back and he would turn it back on but I would like to get the cable and figure it out myself... So what cable do I get and will it be pretty self explanatory? Anyone that could point me in the right direction would be great, thanks

 

I would also like to know this!!

 

your going to need an openport cable. In ECU flash you probably have the forced inspection patch enabled. You will just have to go in there and disable the patch. shouldnt take but a few minutes to change it back and reflash it.

 

The simulated rear O2 patch should still show readings that appear as though the sensor is working as it should in an emissions test. Is the rear O2 sensor physically removed from the vehicle?