I think I need to replace my oxygen sensors. My stang makes this backfiring kind of noise when I try to accelerate and continues when I bring up the RPMs. I pulled a code 172 which means there is a fault in the HEGO sensors. Does anyone recommend a good brand? This really sucks too cuz its only been two days since I got my car back. Had some 3.73's installed and I have to drive like Ms Daisy