5L EFI wiring into VK

[DANNY8]

Done a quick read on some old threads, and turns out it could be the fuel pressure or a vacuum leak.

My fuel system consists of a VL tank, VR high pressure intank pump, then used the VR regulator which is on the pressure side of the line just b4 the rail. Could any of this cause it? What is a healthy fuel pressure at the rail?

[Pub247]

Red Vila or needs to be after the the injectors on the return side

[DANNY8]

Wat's red vila?

There's still a regulator at the end of the rail on the return side. But the VR-VS's use one inline just b4 the pressure side rail as well. VN-VP's use one too but it's underneath with the external pump near the tank. Coz I'm using the VR intank pump I thought I'd just run the VR reg up front too.

[DANNY8]

I don't think it's running lean aye. When the 02 sensor was showing .004v (and popped up the error code for running lean) we ended up disconnecting it which then it showed .450 on average. Hooked it up again this morning and it's varying anywhere from .200v to .800v depending on speed and load. The cover on the plug is broken so it may have been earthing out last night, and now it seems to be ok. When it cools down I might chuck some heat shrink over the connection.

Still missing tho. Put some injector cleaner in it b4, might even try swapping over the injectors with another set I have.

[DANNY8]

Well another problem is the speed sensor. I see the speed sensor goes to the speedo, converts the signal then sends it to the ECU. What in the speedo converts it? Am I gonna have to run a VN cluster jammed up under my dash so the ECU can get a reading? lol

EDIT:
Pulled the guts out of the VN cluster and the only 5 connections which go to the odometer/speedo unit is an ignition source, ground, speed signal to the ECU, and speed signal from the speed sensor. One goes to a pin with nothing, altho according to the label it's "10 pulses", but I guess I don't need it coz of the others.

Will try and wire it up and let ya's know how it goes. The speedo didn't work b4 in the VN, not sure why, so it might not work now either.

[Pub247]

lol sorry auto correct on my iphone chnaged that.

What youre talking about arent fuel regulators the fuel dampeners they are there to reduce the pulses from the fuel pump to create a more steady even flow.

Might be the actual speed sensor on the box that converts analog signal to digital "pulses" that then get sent to cluster then ecu

[DANNY8]

Ah yeah ur right! lol

With the speed sensor, I think it puts out like 10 pulses, the speedo changes it to 2 pulses and sends it to the ECU. So having the signal go straight from the speed sensor to the ECU won't work.

But....I rekon I got it sussed! Made the loom which should sort me problem out. One end goes to the gear shifter connector, the opposite end to a connector I put on there which goes to the speedo. Just need to earth out the black wire, tap the red wire into an ignition source, and the yellow goes to the ECU. It'll either work or it wont!

[delcowizzid]

you dont need the speedo peices LOL chuck me a pm i can send a tune that will read pulses straight from the sender just have to tell the ecu that its not deviding the pulses by 5

[DANNY8]

Done some more work on the EFI 253 2night and tried starting it but it's not firing??

Timing seems to be spot on, she's got spark, compression, but seems to have no fuel. The plugs are dry, but even if I spray some fuel down the throttle body it doesn't seem to fire. Also both injector pins seem to have 12v during ignition and cranking, that isn't normal hey?

[DANNY8]

All good....checked the timing again and it was 180 degrees out haha. My EFI 253 has sprung to life!!

[delcowizzid]

sweeeeeeeeeeet

[exec24]

would anyone know how i would i go about wiring up the Neutral start wire (its the grey wire i think)on the grey plug that comes from the computer, doe that go to the violet wire on the VK wiring

im running a Turbo350

[exec24]

does anyone know what wires i need to keep on VN Engine Harness plug YB62, as i said above i am Running a Th350 behind a EFI 5lt, im guessing the trans wont need the Light Blue or the Grey/Red for transmission(ones converter lockup, other is the kickdown)

The main 2 wires im stuck on are the Brown/Yellow(speedo) will i need to keep this for some reason?

and how do i go about wiring up the Grey (Neutral Start Switch) does it need to be wired through a Relay like a factory VN/VP or can this be wire someway else

[DANNY8]

For the grey neutral start switch wire, maybe earth it out and see if it starts, if it doesn't, then yeah hook it up to the purple wire which goes to the gear selector...think it's purple, I'm gettin a bit rusty. I haven't touched mine so it definitely works without it hooked up. Also I don't even have a speed sensor hooked up so the brown/yellow isn't going to anything either.

[exec24]

so i can remove the Brown/Yellow from the clear plug then?

and the Neutral start in the VK is Purple, so i'll probably be able to wire it up to the vk's ignition, via the Neutral start switch(rather than via a relay like the VN/VP setup)

[DANNY8]

oh hang on....the neutral starter switch doesn't get earthed out, yeah it goes to the ignition, and the gear selector just uses a switch....I'm with it now. Just leave that wire with nothing going to it as well. On mine I ran a new wire for the starter motor. So just extend the purple wire from the VK loom and have that going to the starter solenoid.

If ur gonna try and get ur speedo sussed ya prolly best leaving the yellow/brown wire there. Otherwise if ur gonna do wat I do and just use a gps, may as well get rid of it. Apparently if ya don't use a speed sensor the car can stall from time to time (mine doesn't anymore). But the speed sensor goes thru the speedo then to the ecu. But I rekon delcowizzard said ya just need to change sumfin small on the memcal and the ecu will read straight from the speed sensor without having to go thru the speedo to convert it.

[exec24]

ok so Grey Goes to nothing then(i'll extend the Factory starter signal to the Vk ignition, and run that via the Factory Vk neutral Start Switch)

I'll remove the gray wire it if its not needed(one less pin to get confused with)

I'll PM decowizzard see what he says about the speedo signal, i need to have it running as i have to get it over regency to clear the defect(but will eventually run a set of Autometer gauges in it) so might just do that if regency lets me

[exec24]

ok thanks for that now i know what the speedo signal does, clears it up for me

[*uwishn*]

Thx mate, it bloody worked!

I checked the fault codes as well and it shows up with everything being fine...was hoping sumfin was dodgy coz the car has a miss. Sometimes it doesn't miss and is fine for a while, other times it does miss, but still seems to run well when ya give it some berries. Have changed the plugs, leads, rotor button and dizzy cap hoping that the problem was one of those but it's still doing it. And now no codes are showing up. Would a dodgy valve cause it ya rekon?

wow i have some ###N issue lol

[mr j-man]

hey mate how did u wire up ya check engine light?? thx

[*uwishn*]

hey mate how did u wire up ya check engine light?? thx

check my thread on my vl mate,wiring is on one of the pages.