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Stuck With R34 Wiring

Space Goat

By Space Goat,
in Engines & Forced Induction

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Space Goat Community Regular

Space Goat

Posted
Posted

hi

ive decided to give wiring my car up a go... it wont hurt... its a rb25det neo going into a r31... from the existing loom out of the r31 ive matched up all the wires that go from the computer to the rest of the car using a r34 pinout and other literature... but there a few plugs bugging me and need some stuff cleared up

there are two plugs almost identical to each other in the engine bay which dont go anywhere... they are black with about 12 or so pins each and they have some sort of grease in each terminal... do these go to each headlight as there is one on each side of the car... im guessing all of the accesory wiring is done through the computer aswell like the headlights ect...

the motor will still run without these plugged in wont it??? or is the headlight, defogger ect wires that go to the computer just signals to tell the motor to pick up the revs or something, sorta like the air cond... i couldnt imagine a defogger making that much of a drain on the motor... in that case i have about 1000wrms of amplifiers in the boot which would draw more power than all the other electrics in the car put together...

also what precautions should i take when first cranking the motor over... i dont have fuel to it yet i just want it to crank... is there a way i can prime the head before it cranks or i shouldnt worry about it just as long as it has oil in it... i turn the motor every now and then ive owned it for about 5 months but i dont think its affected the motor as you can sometimes get motors sitting in wreckers for longer than that???

oh and if someone could post up a close up of their battery from a r34 so i can organise which plugs go which terminals i would greatly appreciate it... its a bit of a shit fight there :cheers:

thanks for any help

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James_03 Mentor

James_03

Posted
Posted

one of those plugs, on the afm side is the 12v+ for the injectors, it has spade terminals. You need to wire that up otherwise it wont work. Its a lights grey wire on the r33.

You also need to run an inline fuse, check the full 34 diagram to check what amps but I think its 10 or 15.

To check if the injectors will work switch you ign to on, then take one of the injector plugs off, should have a 12+v coming out of all the plugs, just earth the multi against the body dont try and use the negative on the plug as its pulsed thru the ecu. Its a light grey wire on the r33, but for the r34 neo it may be different. Its the wire thats the same colour on all the plugs anyway thats your +.

Have you also given the eccs relays constant 12+?

Those plugs are nothing to do with your headlights, thats on a completely seperate loom all together.

Space Goat Community Regular

Space Goat

Posted
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Posted

all my injectors are wired up already... huh???

the fuse would go in the 12volt constant wire hey...

my relays loop back into the computer so ill have have another look... for that... theres bugger all wires coming from the existing loom in the r31 only about 8 or so wires going out not including the auto trams plug... i hope i dont have to make new wires everywhere

James_03 Mentor

James_03

Posted
Posted

i dont know what the hell you just said but yeh, of course they are all wired up thats not what I am saying. The 12+ for all 6 injectors runs out thru that plug your talking about, obviously on the 33/34 it plugs into another plug which give injectors 12+.

Just test them as I mentioned and see of you have a constant 12+ with ignition on.

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