my cel light has been out for awhile and i just replaced it..so i start the car up and the light comes on, im like ooo great..so i just checked it and im gettin CEL numbers 12,21,31..12 says "direct power input to the PCM has been disconnected within the last 50 key-on cycles"..no idea what that means lol..21 says "Upstream H02S stays at center"..whats it mean by stays at center?..should i get this replaced? and 31 says " EVAP solenoid circuit" Which wouldbe any of these im guessing?..Evaporative purge solenoid / Clogged purge line / Vacuum hose / Evaporative emission canister clogged...well ive been smellin that rotten egg smell lately so im guessin my CAT is goin?..im a lil confused on what im lookin for here lol



Mods: E-bay Intake, Vibrant Muffler, J Woodleys Ground Wire Kit, F&R Upper Strut Bars, B&M Short Shifter