vs motor wont work

[holdenman308]

hey iv just pop a vs ecotec and 5 speed into my vk wagon iv brought a Memcal with the vats trun off etc now iv got spark and fuel but wont start. thinking injeters? or is there something i could be missing in my wireing for them not to be working?

[hako]

I'm only guessing, but normally you need the key/keyhead to communicate with the BCM which then disengages the immobiliser....but you don't say if you've used the whole harness and if you have used the BCM...but like I said, I'm only guessing. Maybe check out one of those places that instals Ecotecs to Toyota Hiluxes...they will know.

[cander24]

So with the vats removed I assume you're using no BCM? Yes I agree if you have spark and fuel supply i'd be checking for injector pulse next. The pulse however is too quick to be measured with a multimeter or test light to see if its working. You need to do this with a 'noid lite' which is similar to a small light globe you plug into the injector plug in the harness and with the motor cranking should see a flashing of the light with each pulse for that cylinder.
All your earths are good? Both engine to body and pcm to body?
Have you given the PCM both a constant and ignition power source where required?
I assume you're cranking off the vk ignition key and just shorting across the starter motor?

[holdenman308]

hi no im not useing a bcm that why i got vats trun off so i didnt have to mack around with all that stuff as well. yea iv got a constant and ignition power ( iv got one constant and 1 ignition wire ) is that all there is? and i have it truning off the vk key going though the vs starter relay then to starter motor ill do i bit of a check on my earths 2moro but they should be all there thanks for your help ill try and check the injecter pulse but i would say if it was working the car would start. i dont have the gearbox in would that do anything? every thing is manual (wiring etc)and from a manual car

[Brett_jjj]

What fuel pump are you using?If it doesnt get enough fuel pressure up,the injectors wont fire properly..

[holdenman308]

iv got a vn-vs fuel tank with vn-vs fuel pump in it. fuel comes out the fuel rail back into the return line back to the tank so its got engough pressure cheers

[cander24]

Having no gearbox in it at the moment won't stop it from running. Fuel pump should also be run through a relay, powered via the pcm, not hard wired to accessories or ignition. Once again though this wouldn't stop it running, just kill pumps in no time.
From memory you'll need 1 constant and 2 ignition power sources to the pcm, but i dont have a diagram at the moment sorry. Should also be at least 3 wires at the pcm which need to be earthed.
If all looks good i'd be investigating frther for injector pulse as i mentioned before.
Cheers

[holdenman308]

well i checked the wires at the pcm theres 2 constant about 7 ingition+ wires and a hand full of earths

[holdenman308]

also the car i remover motor from was mint runner

[delcowizzid]

there should be 2 constant powers and 2 pink wires that are switched ignition power

[holdenman308]

hey cheers got her going this moring nice and loud haha now i can put gear box in. i found a wiring diagram of the pcm which help me here the link if it helps anyone

http://www.boyod.net/download/Holden...ng-Diagram.pdf