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Vt ss Ls1 won’t start.. INITIAL PROB SOLVED ... starts then dies (Toyota Corolla conversion)

123esproc

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hey guys after building my Ls1 corolla 6speed it’s now time to fire it up but it won’t start, just cranks and stops

I’ve used the complete wiring loom from commodore I’m confident everything is hook up properly but it just won’t start...
Just fitted a 650hp external fuel pump which primes fine
It’ll start if I spray start ya bastard in the throttle body but that’s it.
It has fuel out the fuel line no probs

Fuel issue? What you gurus think ?
 

Lacksballs

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Check for fuel pressure 1st, its not uncommon to have the hoses back to front @ the pump...
 

123esproc

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I’ll double check tomorrow but I’m 200% positive it’s right
I used commodore fuel lines in the build... big one being fuel in smaller being return
 

07GTS

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make sure fuel pressure is 58psi and it should be a dead head system so no return from rails the reg inside the tank returns it if u have used the vt-vx pump module
 

07GTS

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yep make sure pressure is 58psi constant, do not vacuum reference the reg
 

07GTS

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if u are using a fuel regulator that has a port to reference it to engine manifold vacuum dont hook it up that way just vent it to air so the pressure stays constant
 

123esproc

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If I spray start ya bastard it’ll fire briefly
I took the valve out the end of rail and turned pump on ... fuel pissed out 3m from engine so I guess I have pressure lol
I need hi pressure lines before I go to much further... keep bursting rubber fuel lines
All injectors have 5.3 v with key on reds
I’m guessing it has spark because it will fire with the spray in throttle body
 
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