Howdy. I need a little bit of help here. Hope y’all have some suggestions as to what this might be. To start I recently got my injection pump rebuilt. Just got it put back in and took it for a drive last Saturday. Drove it around a little while. And after I had drivin for a few miles and everything seemed fine I got on a flat stretch and floored it to see what it would do. Got it up to about 3300 rpm and it just flat out died. And would not start back. So I start lookin to make sure I’m getting fuel. Lift pump is pumping it real good into the injection pump. But when I turn it over no fuel is coming out of my injection lines themselves. It’s just getting pushed through the return lines. My shut off sylinoid is workin far as I know. I can hear it click like it aught to. Anyway. Got her back runnin. Drove her for a cupple more days ran great. Then floored it again yesterday and same thing happened. Gets about 3300 or so and it dies. If my lift pump is pumpin good fuel. And my shut off sylinoid is open What could be keeping my injection pump from pumping? It was rebuilt by a reputable local guy that I trust. And when it runs it runs better than ever except for that. My truck threw a code saying my throttle position sensor was not calibrated correctly. Could this effect it. Could it be that the even though my lift pump is pumpin a lot of fuel just sittin that when I get it under load like that it quits? Don’t think it’s air. Just put on RnD return rails. No fuel seepage so I’m kinda doubtful that it’s air intrusion. Any body else run into a similar problem?