it runs great at any speed --when stoped or parked it idles rough changed plugs wires cap and rotor -- fuel pressure is 46-50 psi engine
thanks for any help

 

Welcome to Dodge Forum. I will move this to the van section for you, get you some help.

 

Have you done a compression test? That should be first because if even one of the cylinders is low, then nothing else you do is going to fix it.

 

The van is now 7+ years old. You will need to clean the IAC ( Idle Air Control valve).
https://dodgeforum.com/forum/dodge-ram-van/68174-diy-how-to-clean-the-iac.html

If the cleaning isn't helping, then the IAC is bad and needs to be replaced. If replaced, you still need to clean the IAC port hole and the slot at the base inside the chamber.

As for a cap-n-rotor, be sure to use only copper/brass. The aluminum cheap-o ones are junk and rarely last between oil changes.

 

i did check the compression they were very close to each other maybe 2-5%,, they were close none were 25 percent of each other ,,ill try the iac and get back with u thanks again