OK .... replaced both O2 sensors and map.. runs allot better now.. doesnt lose power at all ... BUT it still back fires and coughs allot ... ??? not giving any codes and i already unhooked the battery .... ??

 

When was the last time you replaced the spark plugs?

Did you replace them with Copper Core plugs or did you use Platinum or something?

 

just replaced them when all this started ... NGK ... plugs wires cap rotor both O2's map sensor and TBS ....... hollowed out the cat .... fuel pressure is fine and gas is good.... not sure what else i can replace..... other then engine ... HA

 

You done a compression test yet?

 

so FYT to all that had input .... now that i've replaced most things its running better ... although it still has a little sputter .... she's pretty much good... and to make myself feel like a idiot . and after checking them twice.... i had 2 plug wires in the wrong place... that wasnt the major problem but still was a dumb *** thing .... still gotta figure out y it still has a sputter ... Again thank you all for your input.... If any of you dodge nuts come to MAINE i'll get ya some lobster cheep....

 

What kind of sputter are we talking about? Like a stutter when getting on it?

 

it seems to happen more at low idle ... ??

 

Were the plugs copper, platinum, or iridium?

The only thing most of the Dodge Motors like is Copper Core plugs...

You might have a small vacuum leak, but if you "hollowed out the cat" then that could make it sound like a sputter but in-fact it might just be a little bit of a rich mixture back-firing a little bit.

If you could post a video of the "sputter" we might be able to diagnose it a little better.

 

Low idle would seem to be an IAC to me.
The Magnums can take platinums, but they ping pretty bad usually. Iridium is the only rare earth plug the Magnums will take, and not even all engines will play nice.

A hollowed cat could do some weird stuff, like you said.




That's why I replaced mine. Besides, I've already got a vehicle with not cat, didn't want another one.

 

hey ISK how did you hollow out your cat...pm me