Rb25 sudden no start after 4hr drive!!!

[mtxfrk2k1]

I have a built rb25 s14. i drove the car 4 hours stopping 2 times at 2 different locations for about 15 minutes to 45 minutes a piece. it made the trip absolutely no problem. i came out to start the car a couple hours later to find that it will only crank and not start.

so far i have tried:
checking all fuses
checking CAS and Igniter plugs
pulled plug out and i do have spark
have venom FPR and it is only showing 6psi of fuel pressure even when cranking

what would cause me to run great for 4 hours then lose fuel pressure. i have twin walbro's in the tank

[Sileighty_85]

Check ECU for Codes


when you turn the key to ON you should have 40+ psi or whatever its set at.

[mtxfrk2k1]

with the key on or cranking it stays on 6psi.

im running apexi power FC

[Couped_up'd]

Hmm, check your fuel pumps.

When key on your getting 6psi, as sileighty stated, you need around 40psi for the engine to start. +1 on checking the ecu for codes. IF you are getting spark, I would strongly question your fuel system. Make sure everything is working. (fuel filter?)

[Sileighty_85]

On the commander go to the Systems check screen, and see if there is a black dot next to the Fuel pump when you turn the key to ON

Or just listen for the pumps and hear if they kick on, Im sure you can hear it with dual pumps

[mtxfrk2k1]

ill go check in a second.. should i try to give it a zap of starter fluid to see if its fuel only related?

after cranking on it for awhile i pulled 2 different plugs and they were dry and cardboard brown in color

[mtxfrk2k1]

ok. never saw on my power commander a thing for fuel pump. i did have injectorduty cycle at 2.8% while cranking tho...

[mtxfrk2k1]

FIXED!!!

the problem was the 2 prong connector that connects into the lid of fuel pump backed itself out so the fuel pumps werent turning on!!

just thought i would give you guys an update