Kyle,
In my last MOT the testers could barely get a reading off my exhaust, and now I'm getting a o2 sensor CEL. Do you think that means I'm running lean, and could the two be related? How would you fix running lean? Cheers!
Honestly no idea mate. Did the tester mention it, or did you just notice it on the screen or printout?
They were standing around scratching their heads for ages during the test, a bunch of testers came over and were all looking at the car and the reader. They asked me to hold it at higher revs for a while and then finally moved on. I asked what was up, and they said they just struggled to get any reading. I asked if it was a problem and he just shrugged.
I know my reading was very low, especially low for decats, but nothing was mentioned of it If the car isn't sounding strange and/or you haven't fitted a load of breather mods like cone filters and plenum spacers, it shouldn't be running lean. I'm not sure if the possible faulty sensor could cause it to run lean or not. Have you figured out which one it is yet?
You were able to pass an MOT with test pipes?
Yea, flawlessly passed emissions.
In that case I'm off to throw my cats in the bin haha What test pipes do you have?