Got dual exhaust installed on my 04 Dodge Ram 1500. 4.7 And there’s been a miss ever since. Fuel is running rich and there’s a skip I can’t find . Unplugged the o2 sensors and run fine. Got new o2s and put in . Now it’s running worse than the old ones did.

 

What brand O2 sensors? How far down the pipe are they, as compared to the stock location?

Moving this to third gen ram section.

 

Bosch , I got dual run from cat back . One is on the end of the cat and the top one is right under the flange where it bolts to the manifold

 

Bosch. There is your problem. Dodge trucks simply don't like them. NTK or Denso only please.

 

Yup, these trucks are VERY picky about sensors. Same goes with spark plugs on these trucks.

 

Dang , ok, also , I was told to disconnect the battery cables and clamp them together for about 30 min then connect back. I did that and it ran good for about two days then it come back. So I got curious and unplugged the sensors again, but this time it run like crap , couldn’t even tell I unplugged them this time lol