I have a 99 F150 super cab with a 4.6L with just over 100,000 miles and the SES light is on and then off. A code scan at Autozone points to O2 sensor 1 in bank 2 with a slow responce. Where is this sensor and can it be cleaned or replaced?

Thanks UncleFester

 

If it's no# 1 bank 2, it's just down from the exhaust manifold before the converter on the left (drivers) side.