My buddy has a 2005 Ram 1500 with the 5.7 Hemi. He installed high flow cats and mufflers and has had a check engine light ever since. He has done O2 sensors and spark plugs and wires but cannot get rid of the code for more than 100 miles. He has heard about moving the location of the O2's. PLEASE HELP!! Thanks in advance.

 

Has anybody ever heard of this? Getting nervous that Im getting views but no responses??

 

He probably needs to do the non- fouler trick to get rid of the cel. Common problem when running high flow cats.

 

Yep. No need for high flows.

 

What's the non-fouler trick?

 

Buy a pack of the non foulers. Drill one out so your o2 sensor will fit in it. Then take the untouched fouler and stuff it with 0000 steel wool and thread the drilled non fouler into the stuffed non fouler. Now thread the assembly of two non foulers into the bung in your exhaust and the o2 into the non foulers. The non foulers are dorman 42009.

 

Wow. Ok thanks. Im new to the site. . .Are there any threads with step by step pictures of this? Thanks again for the quick response.

 

There is one on dodge t a l k . c o m. Excuse the spaces but that name is blocked on this forum for some reason.

 

Before you go off the deep end What codes?

 

Got the P0420.