Catalyst System Efficiency Below Threshold (Bank 2).
I get a check engine light every once and a while. I used my edge code reader and it states "Catalyst System Efficiency Below Threshold (Bank 2)"
From what I read this means either bad 02 sensor etc? My truck only has 12,000 miles on it and had the Roush Intercooled SC installed about 1,500 miles ago.
IS there something I can pour in the tank to clean the 02 sensors and such?
Thanks you in advance.