Why is my truck cutting fuel??? HELP PLEASE!!!!!!

my tubes aren't .093 but the edge filters are missing, just driving normal the truck feels like there is no box on it! driving easy winding it out it cuts fuel like JKTs truck but when you lay in it, it lights good but it seems to light slower in sixth with the HRVP than it did with the HO pump but on the top end it feels better!! would the HRVP make it slower to light!
 
So does anyone have any other ideas. Has anyone else seen this before??? I am going to pull the pump next week and have the pump checked out.
 
Oh and like I mentioned before, if you can get to Ft Worth, I can hook up a bunch of stuff and tell you what is happening for sure, 100% guaranteed.
 
You run big tubes and x-overs? I'm no expert, but it sounds like you are asking for more fuel than the VP can provide.......... I'd go back with stock lines and crossovers.
 
Well after the truck through the P1691 code i pulled the oversized tubes out. There is something else going on. I was seeing this with the edge before the quad. Just not as bad.

Am i even thinking right about how the pump adjust the timing. If the pump is seeing the AFC move and it cant adjust the timing what will it do. Something is wrong on the truck. wouldnt the 1691 cause weird fueling issues?????
 
I would imagine it would since that doohicky thingy is what controls all the fueling and timing.
 
If i cant get this crap figured out i am going to go with a p pump. I am about 99% sure something is up with the pump or the computer.
 
:banghead:


Did a little more testing with a different tune from quad and no change. I am 100% sure its the truck. Oh and i found a good fix.:chug:
 
I'm thinking it's the boxes--I had something going on like this with my REDLINE and EDGE--took them off and no issues---dump the boxes totally and see what happens--yes I have a HRVP and .093 tubes and lines----chris
 
nothing right now and it kind of sucks-----getting the REDLINE tuned up and will send the EDGE in for some adjustments ane the Quad box is waiting for me to get off my butt and put the twins on, injectors, etc.....chris
 
should've clarified--it sucks because of the power loss ---just Mach 7's and a ol' burned out B1 and she doesn't move to fast---chris
 
I think earlier in this thread you mentioned it would do this to some extent with no box or with the boxes turned on 0??

If that is true any box will most likely aggrevate it?? The harder it fuels, the more it will aggrevate it.
 
When i talked to II about it they said it could be 2 or 3 things. Yet the want me to send the pump back so they can check it out. Ill do a little more talking to them this weekend and see what they want to do.

I really wish i could get a ecm reflash so i could reflash my ecm. And possibly eliminate that.
 
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