ntc350 bc cummins no power in high gears?

ok, well i called a shop who rebuilds pumps hes telling me based on what i told him that its the fuel pump.

my question is, does this pump work similar to the cat b model pump? needing a reference signal to AFC cover in order to augment fuel under load and boost?
is there a possibility i just have a bad AFC or something? i can change without pulling off complete pump. isthere a picture someone could post of the afc on thept pump? i dont think mine has a signal line goin to it, appears to be capped off with a plug.

 

all new fuel lines,filter and base

 

well a little update I installed the new rebuilt pump and its exactly the same no change whatsoever. truck still dies on highway going up hill and wont pull in last two gears, just takes to long and seems as if its choked in order to rev higher in HIGH range on trans.

I noticed that the return line is completely wet and some what soaked for the majority of its length, COULD THIS BE my problem?
I was thinking that the return side of the system doesn't have pressure like the feed so it wouldn't matter if the line was bad as this line is just meant to drop fuel back into tanks, to my understanding it cannot suck in air or have a restriction that will hurt it on the return side? ive read about people even plugging the return side with a dime so why would a weeping return line make anymore of a difference?


I wish I could get the same power in low range on the high side cause its really frustrating taking your foot off of throttle in traffic to slowdown or to try and pass someone and the truck wont do it? im stuck at 60mph top gear and whatever downhill momentum I get.

I cant understand how this hasn't come up before in cummins guys conversations I hate to be the first time for problems and no one never hear about the issues im having.

doesn't make sense truck accelerates with fuel turbo spools with fuel, more throttle more rpm more bost pressure is supoosed to equal more power to accelerate but its like truck is governed.....

linkage travel is prefect, the pump only acceletates on shaft 1" or so of movement so there isn't much stopping that and I checked with someone depressing pedal if it was moving as it should and it does. im going to have to put this truck up for sale if I cant figure this out, I need more power this just isn't cutting it, I mean my b model cat wasn't speedy but would put this cummins truck lengths behind it by far. this is craxy that I cant find a sound solution with basics on why this crap wont pull in high range.


can turbo still spool and sound normal and still be BAD????? I need to pull of intake piping to check turbine wheel to mak sure.

 

skateboardman in regards to the solenoid screw its turned all the way OUT.....backwards I didn't know flow would be restricted by this solenoid I thought all it did as turn engine off when you turn key back..... with the screw turned all the way in truck will not turn off. I need to have screw all the way out in order for truck to turn off and still sometimes I may have to tap it in order to get truck to turn off...