1999 dodge ram rough idle issue

I need help!!! I have a 1999 dodge ram with a 5.9L magnum v8. It has a rough idle issue. I've replaced the throttle position sensor, replaced the plenum
gasket, replaced the idle air control module. Replaced spark plugs, wires, distributor cap, rotor, o2 sensors, both bottom and top throttle body gaskets. I threw some injector cleaner in the fuel. Ran a few tanks through it and no change. It starts fine, idles for a bit and starts stalling idoing rough and spitting sputtering and backfiring. I cannot figure it out. When I rev it up its fine but when the rpm comes down it dies. I really want this issue fixed, I need anyone and everyone to give me all of the ideas to fix this. I cannot figure it to and it's nickel and diming me for everything that I have. Please help!!!
Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
<%-name%>
Add image file
Upload
On 10/16/2016 3:18 PM, Gillottk462 wrote:

Is it turning on a SES light?
--
"If you're going to kick authority in the teeth, you might as well use
two feet."
  Click to see the full signature.
Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
<%-name%>
Add image file
Upload
replying to Ken Olson, Gillottk462 wrote: No codes at all
Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
<%-name%>
Add image file
Upload
On 10/21/2016 3:18 PM, Gillottk462 wrote:

Vacuum leak at the brake booster?
--
"If you're going to kick authority in the teeth, you might as well use
two feet."
  Click to see the full signature.
Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
<%-name%>
Add image file
Upload

Motorsforum.com is a website by car enthusiasts for car enthusiasts. It is not affiliated with any of the car or spare part manufacturers or car dealers discussed here. All logos and trade names are the property of their respective owners.