Did the fuel sync, changed coolant temp sensor, wires to tsb, cap, rotor, plugs, crank sensor, plentum gasket, it has 130 comperssion a little low but should run. This is a 95 Ram 1500 5.9 4x4. Could the trans temp sensor cause this had to replace line and I omitted the sensor?

 

Define "runs like poop", please.

 

Okay Low idle, the IAC opens up and seem to be running rich take it out and try to drive it backfires through the intake. try to hold at even speed the the engine looses power starts backfireing throught the intake, stomp it to the floor and it will through you in the back seat and run great untill you try to drive normal.

 

How is your cat?

 

No cat and exhaust is clear.

 

How do you kow IAC opens up? Got a scanner hooked to it? Is the IAC port clean?

Don't know about a 95, but a 99 has the temp sensor inside the tranny.

 

You can hear it open up and draw in excessive air.

 

Oh and the temp sensor is on the line just out side the trans case.

 

and yes I cleaned everything out.

 

I'm thinking bad IAC.