I recently put on a set of pacesetter long tubes and an replaced the cat with a Y pipe on my 2003 1500 5.7 and the engine light will not go off, i know its just something with emissions but is there a way to bypass that O2 sensor so it doesn't throw codes to the computer?

 

https://dodgeforum.com/forum/3rd-gen...ving-cats.html if you only had one cat, you'll only need 1 fouler. put the normal o2 sensor in one header, and the other o2 sensor with the fouler in the other header. if you had 2 cats, follow the DIY

 

I'll have to give this a try, I've gotten used to it already but its just annoying see the engine light constantly on.

 

even more annoying having passengers tell you your CEL is on, or asking why its on.

 

You didnt remove the cats right? Its more than likely an exhaust leak. Make sure the welds are all tight and the headers are sealed properly.

 

That would kinda say to me he no longer has the cat. The non-fouler should do the trick...

 

Haha I really missread that. I seen Y pipe and was just thinking the magnaflow Y....

 

i put a 180 thermostat in when i did mine and the engine light stays off now.

 

Any clue where i can pick up the correct non fouler for it? I went to murrays today and they only had a 14mm one which wasnt big enough becuase i had them get the O2 sensor out and when i tried screwing it in, the actually sensor end wouldnt even go in. Anyone know the correct size to get for an 03 ram after cat o2 sensor?

 

nice i love my longtubes, how they sound on the hemi ??