decepts
Member
Early this year I took my ford to the ford dealership to troubleshoot my running issues. Around $2k later I had the ECU, sparkplug and a coil replaced and then they were telling me I had a fuel pressure issues and wanted to replace my fuel pump. I told them I just replaced it a few years back so I took the truck back home and replaced the fuel pumps with two Walbros 255lph pumps replaced the Y connector with a stainless steel one and put everything back together. I checked the fuel pressure and currently read around 30 psi. Stock levels should be around 35-45... So I put my fuel pressure gauge right after the fuel filter and pinched off the line and read around 60 psi. So I got good pressure. I then hook up my fuel pressure gauge on my fuel rail and I pinch off my return line by my fuel filter and I get around 60 psi. When I let everything flow without pinching my line anywhere I get around 30 psi. Which tells me the fuel regulator (stock and another new stock one) is regulating at 30 psi. The only way I can change this is get an adjustable regulator. So I then decided to check my hi / low fuel pump relay; which is good. I then hot wired it to run all the time and I now get 60 psi all the time (this jumper I later removed since after all this doesn’t seem to be the problem). So now I really don't have a fuel pressure issue anymore but my truck acts just the same before doing all of this still. WTF?!
The problem I'm having is that it is very gutless when going up hills and when I want to get on it. It wants to "pop" or "choke" out especially right before it goes into the next gear if I want it to kick down by putting my foot in it more. Can anyone please give me some ideas on what is going on? Any information would be great!
Thanks!
---------- Post added 05-28-2012 at 09:30 PM ----------
Update:
I've noticed today while running some tests and graphs that my timing retards in response to giving it some throttle. WTF?! I know that the timing should advance while giving throttle but this isn't the case for my 02 Lightning. Can anyone please give me some ideas and thoughts on why this might be? Thanks!
The problem I'm having is that it is very gutless when going up hills and when I want to get on it. It wants to "pop" or "choke" out especially right before it goes into the next gear if I want it to kick down by putting my foot in it more. Can anyone please give me some ideas on what is going on? Any information would be great!
Thanks!
---------- Post added 05-28-2012 at 09:30 PM ----------
Update:
I've noticed today while running some tests and graphs that my timing retards in response to giving it some throttle. WTF?! I know that the timing should advance while giving throttle but this isn't the case for my 02 Lightning. Can anyone please give me some ideas and thoughts on why this might be? Thanks!