hey guys i am gettin 4 codes! p0420 p0442 p0456 p0440. saw what they were but have NO IDEA what to do to get em fixed. i have had the p0420 code forever and NEED to get rid of all of them for inspection. PLEASE HELP! tried tightening the gas cap reset, still throwing the same codes Thanks guys

 

Ok you got a bad Cat or a bad O2 sensor (p0420) and your gas cap is loose. Tighten the gas cap then disconnect the Negative cable from your battery. And wait a couple of minutes.

 

already tried that, still get the same code. my cat is brand new, i guess i'll try to change out the o2 sensor

 

some help would be greatly appreciated

 

lol looks like i'll be figuring this one out on my own

 

Take it to the stealership.

 

STEALERship lol exactly why i dont wanna take it there