Front or Rear O2 Sensors?
Front or Rear O2 Sensors? I am installing QTP LT's and would like to put the rears up front - like with the LG's as it makes sense. Only problem, I forgot to mark them as Front & Rear - so I am not sure which is which at this point. There are 2 shorter of course, with AFS 97 on them and 2 longer of course, with AFS 98 on them. But, 2 sensors are Orange in color and 2 are Dark in color. I believe that the 2 Orange ones must have been up front before the converters - right? And to note, I had Autotapped and both sensors had great #'s and were reading about the same - and were right on A/F ratio-wise - leaning to the lean side if anything. Let me know what you can. Thanks!
