CLAUS1

I will let you know by tomorrow. The truck has long crank time again in the morning and you have to back out of the pedal at full throttle because it slows the truck down. Same symptoms my last vp had but it had a p01688. I have no codes except 602 from Smarty stacked with Edge

I checked both new and old overflow valves. They both are Good. I'll look into blue chips procedures and vp is not under warranty because I tapped the pump wire

Did Map sensor code test. Checkout to be bad Map Sensor. Code has been gone for 2 days now. I replace the overflow return fuel valve. Again there was Not even a drop of fuel in the return line. With that finding i'm going to have to go back to my original thought and replace the New VP44 due to fuel pressure going down to 5psi couple times.

I can do that first thing in the Morning. Link didn't open but I found the procedure. thank You

out of the blue 237 code and the truck in a limp mode for moment. Whats on your mind for ideas I can check?

Map sensor code is gone. still scratching my head on the cutting out issue. OverFlow Valves will be here Thursday and if that don't fix it? VP$$

Truck went into limp mode for a few moments yesterday, and throwing code p0237. Tried Cleaning it but light keeps coming back On. Be nice if that also fixes the low power issue

Yes, Just New ECM. I called Computer Resource Company they said yes 501 code could be caused by broken/solder joints on the board. 501 could would come on after driving 25ft every time. 501 code has not come on again!

I believe there is a little restriction in the basket for the return line from the vp44, it is the way it was from the factory so, That is not the issue here. Now as for the fuel emptied out of the return line and the truck not starting that is weird to me.1 line comes from back of Head and other line comes from return of VP44 and they meet together and goes back to tank. I will change the banjo bolt just to KNow if its leaking. It would seam to me the vp is releasing the fuel

yes , after working on the fuel line today I noticed that if there was NO Fuel in the Return Line coming from vp44 than I had a hard start issue. took 3 times for it to start and it always fires right away. I'm going to leave the Return Line submerged in the basket. For some reason the vp44 needs return pressure? Like i said it wasn't easy blowing into the fuel line returning into the basket. I did take off the Smarty today and set the edge on 6x5 with timing at 1,3 advance. The truck has very slow reaction time. And My Stacked programmers was working awesome. I was thinking maybe the blocked return line was an issue but after today I realized its not blocked its just restricting fuel back. Iam still at Vp44 is bad with my cutting out issue..

When I tried blowing in the return line halfway down the truck frame i really couldn't but did. After trying 3 times fuel started running back at me.So the return line is inside the basket submerged in fuel. Should I take the tank down and cut the return line so its about 1-2 inches inside the tank?

No i'm not trying to drain it. I had a small leak coming from the plastic to metal line on the return side. I just wanted to make sure return line was supposed to be in basket in the fuel tank. I blew into the return line that goes to the tank and it created a vacuum and fuel came out the line. I originally thought the line should go back to the tank but not touch the fuel sitting in the tank. but Now I know.

Yes i am referring to the stock fuel line coming from the vp44 T-adapter going to the tank. My Fuel return line is going to the bottom of the basket, it just got me thinking that the fuel should flow easy back to the tank with no restrictions.I also noticed if that return line was drained of fuel I would have to prime the system by using the key bump to activate the Air Dog 150 relay.

I just tried Data Logging 3 runs and Fusion says same things as other edge unit did " data file missing or corrupt and now save" I just fixed a small fuel like on the frame rail and I noticed that when I tried blowing on the return line to the tank I was blowing against fuel and it started draining back toward me. Correct me if I'm wrong but the fuel on the return side should have no restrictions and drop back into the tank from the top not into the basket?

New ECM fixed the p0501 and p0500 code the truck was getting. Was not CAB module like dealership thought!