Hey, i've been told conflicting things about running the O2 sensor on the test pipe. Some ppl said it will burn out, some ppl say it won't.

Also, did any of you find that the wire wasn't long enough? I had to take out 2 pastic brackets holding the wire to the car out so i could stretch the sensor to the test pipe. I reattached the lower bracket, but the upper bracket i had to unattach before it was long enough

 

I can't think of any reason why it would damage the O2, since it will be seeing the same exhaust gasses that the primary sees. However, you will get a CEL since the OEM ECU will detect the test pipe. There are O2 simulators that will prevent the CEL. You can read about it here.

 

nto that informative. . so what do you put in the hole of the test pipe when you get a simulator?

teh O2 is a wear and tear part that gets clogged by chemicals and sh!t cus it's more dirty without the cat, that's why it dies earlier