Ok so I have a 99 ram with a 4bt swap and my problem started on a long drive of 1000 miles pulling a car. My truck would start to spudder at high RPM's when i was going up a hill or something like that, and as a kept driving the spuddering got lower and lower in the RPM's till pretty soon it couldnt rev high enough to get the turbo to produce any boost. I could stop on the side of the road, shut it off and let it sit for a while then start and take of fine till i hit 3rd gear and the problems would start again, slowly getting worse and worse till the truck couldnt pull in any gear higher than 1st.

So after a very long drive home i finally made it, took my truck out without the trailer and it still didnt like high RPM's and would die when it tried to idle. I replaced the Lift Pump then it wouldnt start, had air in the lines so after bleeding it for a while and replacing the line it finally started, ran for a minute then died. bled eveything to make it start again and it would keep running as long at you kept on the throttle, as soon as it went down to idle it would die and be a b*#ch to start again.

Any help would be much appreciated since its getting quite old and frustrating me.

Thanks

 

does the engine have electronics at all or is it all mechanical injection?

in other words is it similar to a VP44 injection pump where its mechanically injected but electronic control for injection timing and duration, or is it 100% mechanically injected like a P7100 or VE pump?

 

It has one wire running to the injector pump, a key hot wire.

 

How is your fuel pressure?

 

unfortunantly I dont have any guages. thats why this is so hard.

 

$60 gets you a tool to measure that.

If you don't have access to the proper tools, take it to a shop and have someone fix it for you.

 

you more than likely have low fuel pressure/flow, pluged fuel line or filter, or leaking suction hose normally