so i have been getting a fuel delivery code lately. when i have my quad on 5 it start out fine and then i cant bost over 20 psi and my rp gauge says 264 to 26.5. could the code be the relief valve if so how can i fix it.

 

no one? i going to put a bolt in the relief vavle and see what happens i guess

 

no one can help me?

 

What is the exact code?

 

i have no idea how do you find out?

 

Turn the key from off to on ( not cranking) three times ending in the on position. Codes will read out in the odometer screen. How did you know it was a fuel delivery code in the first place then?

 

i had to take it to the dealer for themto scan it. i talk to justin at quad (it was his last day) and he told me to unhook the quad box and see if it does it, but it only does it when the box is on, so maybe its the box programing. anyone else have a problem like me?

 

Try to get the code yourself, then let me know what it is exactly. I have had some fuel codes when running the hot smoke program on the X2, but since putting the Walbro pump on, I haven't had it. Which program are you running on the X2?

 

i was running the smoke mpg city but now i am running factory tune from quadzilla. i have the race upgrade. i guess i didnt think that my holley could be going out, but if it was i would not have fuel? right? my rail pressure has been 26k to 26900. i have not been able to throw the code all day but my boost still goes down to 25 if am on it to long. i did not have this prblem until iput my water/meth on, hope i did not screw something up.

 

Are you running the Holley Blue with, or without the stock in-the-tank fuel pump? What is your fuel pressure?

 

When my lift pump was going weak, I could get goor rail pressures, but the supply pressure was 0......thats when I was getting the code , IIRC. Like AlCorr said....whats the lift pump pressure? That and get the actual code when the light comes on.

 

i dont have a fuel pressure gauge yet. am not losing any rail pressure at all. i have the holley blue and the in tank one.

 

Thats what I was saying.....my rail pressure never did fall, but the lift pump pressure did. That was when I was getting the code.

 

ok got it. am going to order a different holley blue and see if that fixs the problem. i took out the quad and it is still doing it stock. where can i get a fuel pressure gauge at?

 

You really need an in cab guage. I have one on my commander, but I also put a manual in my 2 mic filter head to make sure the commander is reading actual pressure. ( Been several issues with the senders! ) You can buy one and tape it to the windshield for diagnostic purposes. Save the money on the pump until you know that is what's causing it.