Failed E-test In Canada
 

help me guys i blew the e-test out of water and i think it is cause my O2 sensor is gone..... i just put a full new exhaust on 2.5" and new high flow cat.... i am getting brutal gas mileage and i am running really rich..... help me please

Canadian Form
 

Recommend you post your question in the Canadian Forum. Much better chance of getting and answer.

I can tell you with what little info you have provided, the possiblities are almost endless. You may think your o2 sensor is gone, but have you tested it?

Search the forum, somewhere I've read a peice that tells you how.