Vn commodore ecotec conversion no injector pulse

[Leon]

Hey guys Im in a bit of trouble and need some help, I bought a Vn commodore shell it was originally a 5 litre I got a vs ecotec motor manual gearbox t5 manual vs wiring harness and manual vs ecu from a mate and this was a running motor.
I put it all in and I've got no injector pulse. I had the vats removed from the memcal. It runs if I spray aerostart in the throttle body. Had an electrician come and he spent 5 hours and could work it out. Any help would be appreciated thanks

[vs ss]

Still sounds like vats. Does the fuel pump prime when you turn the key on ?
Also do you have a multi meter.

[Leon]

Yes it's got fuel pressure to the fuel rail fuel pump primes I've replaced both internal and external fuel pumps. Yes I have a multimeter

[Holden202T]

can you jumper the diagnostic pins and see if there are any codes come out ? (or use a laptop and cable if you have one)

im just trying to think back to my ecotec conversion..... if its cranking over and got fuel to the injectors, it sounds like its the computer not opening the injectors, if its properly connected and alive, then it possibly cam or crank sensor signal issues as that's about the only thing that will stop them from pulsing .....

if its not a sensor issue then more than likely the only other thing that should stop it pulsing its VATS .....

[Jayme]

when you say fuel pump primes.... does it prime, then switch off? or do you have it connected to ignition power so it runs all the time?

[Leon]

I've checked its got a single from crank sensor to dfi module. This was a compleate running set up out of my mates car he only pulled it out as we did a 5 litre conversion to his vs. The fuel pump primes then stops

[antus]

Ive heard of people accidentally crushing injector wires during the install. If its not a vats problem it could be something like that. Pulling the error codes from the ecu (if there are any) would be a good start. Dash connected? Got a check engine light? Whats it doing? It sounds to me like vats also.

You said you got the VATs removed, so I take it the BCM was installed in the last car and vats was enabled there? Have you ever seen it run on that no vats memcal without the matching BCM present? I reckon it sounds like a bad memcal too.

[Leon]

I installed the engine harness after the motor was in. I'll take another look at the harness. The dash is plugged in and I have the engine light on dash I'll give it a go and see if any lights come up I've ordered a diffrent memcal see if it works. thanks for the advice guys I really appreciate the help