cold start

Cold start video of my 2008 Ford Mustang Bullitt. Roush TVS supercharged, BBK shorty headers, off road x-pipe, and Borla Touring mufflers.

I have a ‘11 GT (5.0, 108K miles) with the check engine light on. Codes were for bad O2 sensors bank 1 sensor 2 and bank 2 sensor 1, I have changed both sensors. Now it is telling me that bank 2 sensor 1 has a low voltage code and the check engine light is on again. I took the upstream sensor...