Ever since I had my GReddy Catback Exhaust installed, my Check Engine Light keeps coming on. Everytime is gives me the same code ... 0505, which means "All Clear". I reset the light each time, and it eventually it lights back up.

Did the guys who installed my exhaust mess something up? I know they had to do something wierd with the o2 sensor to get it to line up or something, but wouldn't that give me the o2 sensor code if that was the problem?

Thanks for any help,
-Nick

 

what was teh problem specifically, what did they have to do?

 

that's weird.. it throws the 0505 code?

try to like, disconnect and reconnect the battery.. see if this helps. I had a weird code coming up for my EVAP Canister valve or something like that just after i got the car, I took the thing apart, didn't find nothing, put it back on, code was still there.. then disconnected, and reconnected the battery and it went away

 

Do like he just said reset the code and disconnect the battery and wait for a couple of mins or maybe even 30 Mins. Weird I was getting 0505 as well after I installed my Supercharger, as well but it finally went away, I did disconnect the battery when I was working on my alarm and it never came back try to see if that works if not, check your car thoroughly and ensure everything is in place.

 

I used to get that code too, but I don't have an exhaust, just a CAI. Disconect the battery for 15 min. that should help, and light will disapear.

Andrei