Fuel Problem

[1badplr]

I have been having problems with fuel! I had the C3P replaced and thought that was the problem! It wasn't. Basically it's like the truck is de-fueling especially in 5 and 6th gear. The truck is also makes more noise in the cab when it runs rough. I talked to Larry at Ekstam, he feels it's not the air dog. I know the injectors are ok. The truck runs good for about a mile then it start to run smooth again. When the truck runs good I can see 43lbs and 1600 egt no problem, when the truck runs rough 30lbs and 1200 egt's. The pedal feels weird from 1/2 to full when the truck is running rough. Any ideas????

 

[JTryles]

Any power enhancing boxes on it???

 

[1badplr]

Just a TST, but I swapped another box a friend and had the same problem?

 

[JTryles]

From what TST says on thier web site you will see fuel starvation issues when you run anything over about 5/5... . does it do it when you take the box off completely and return it to stock?

 

[Jerry1]

A friend of mine with a powerstroke was having problems like yours that seemed to be fuel related but turned out to be the camshaft position sensor. Just a thought.

 

[JTryles]

***SNIP***When the truck runs good I can see 43lbs and 1600 egt no problem, ***SNIP***

1600 on the EGT? Better watch that! Your playing with fire there- fire that can melt a hole in your pistons! :{

 

[1badplr]

From what TST says on thier web site you will see fuel starvation issues when you run anything over about 5/5... . does it do it when you take the box off completely and return it to stock?

The box is on 2/2. With the injectors I have I can only run the box up to 3/3 before it put's to much fuel to the motor. I think this is an ECM or Pop off valve problem. I checked the Air Dog, replaced the C3P, Checked to see if the wires came lose on the injectors, not sure what else to check?