I've got 3 OBD II codes I need to fix; but I don't know how to fix them....
They are:
P0153 O2 Sensor Circuit Slow Response (Bank 2 Sensor 1)
P0820 Gear Lever X-Y Position Sensor Circuit
P0830 Clutch Pedal Switch “A” Circuit

Does anybody have some experience with these??

 

The first code you listed for the O2 sensor could be an exhaust leak. In fact, that's the code I got yesterday except for the driver side and for me, it was due to exhaust leak (I got headers and didn't use locking bolts). Other possibilities could be a bad sensor(s) or vacuum leak.

 

I was thinking it was because of my O/R X pipe.....