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Headlight Wiring Problem On A31

SirRacer

By SirRacer,
in Four Door Family & Wagoneers

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SirRacer Experienced

SirRacer

Posted
Posted

Hi There,

Ive encounted a problem when using an r32 gts25 loom on my a31 rb20e cefiro. We need to use this loom due to running an rb30det (r32 head) so naturally have used the loom.

The skyline loom however looks to have different plugs to connect the headlights whereas the cefiro has a basic plug.

Ive ditched the cefiro loom a long time ago, and now need to know what others have done in this situation.

In another loom (rb20de) there is only one large plug to connect the headlights and ....

The first 2 pics are the plug which connects on the cefiro, and the others are of the loom we are using. If we manually need to wire from the pins to the headlights, what is the other big plug for? Where will that plug in?

Thanks

Pics

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post-21312-1205916468_thumb.jpg

post-21312-1205916796_thumb.jpg

post-21312-1205916924_thumb.jpg

post-21312-1205916961_thumb.jpg

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https://www.sau.com.au/forums/topic/211140-headlight-wiring-problem-on-a31/
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brada31ke70 Enthusiast

brada31ke70

Posted
Posted

ah yes yes yes the good ol wiring game. not 100% sure what you are talking about but i think i know. when i installed a rb26 into my rb20de auto cefiro i kept the head light loom from the cefiro and added the other wires which the 26 needed to it. that big plug on the cefiro carries the the injection and ingnition a aircon signal and a start signal feed if my memory serves me. the other big plug which is on the skyline loom feeds the dropping resister for the injectors, which needs a feed from the fuse box on the way through, and a pcm valve which is positioned by the main fuse box side. i dont know if that has helped, you if you are on the gold coast i can have a look if you like.

SirRacer Experienced

SirRacer

Posted
  • Author
Posted
ah yes yes yes the good ol wiring game. not 100% sure what you are talking about but i think i know. when i installed a rb26 into my rb20de auto cefiro i kept the head light loom from the cefiro and added the other wires which the 26 needed to it. that big plug on the cefiro carries the the injection and ingnition a aircon signal and a start signal feed if my memory serves me. the other big plug which is on the skyline loom feeds the dropping resister for the injectors, which needs a feed from the fuse box on the way through, and a pcm valve which is positioned by the main fuse box side. i dont know if that has helped, you if you are on the gold coast i can have a look if you like.

Thanks for the reply.

In my pics i has the piece where on the cefiro the headlight stuff plugs into. When the loom is connected to the engine, there is absolutely no way that plug could go anywhere near the fuse box?

How did you wire things, do you have any pics?

Not in QLD so that wont help much

brada31ke70 Enthusiast

brada31ke70

Posted
Posted

yes that plug goes nowhere near the main fuse box, but when you add the skyline wires to your head light loom, it adds a extra plug which goes from where you have pointed to on your picture, to the other side of the engine bay and connects to the dropping resister for the injectors and the pcm valve that controls boost, which is beside the fuse box. well that is the way i did it. very hard to explain but you will get there. i used the standerd rb26 computer, if you dont use the standard computer you may not have to do this. good luck my friend, good feeling when it finally fires. hate to say it but toyota wiring looms are soo much easier to install.

SirRacer Experienced

SirRacer

Posted
  • Author
Posted (edited)

hey dude, thanks for your reply.

this engine head comes from an rb25de so im not too sure what you need regarding the injector resistor and pcm valve as this loom doesnt have the resistor in it and is NA?

did you get rid of the plug and manually wire things? all of the pcm valve and wiring looms seem to be taken care of on the other side of the loom? any ideas?

Edited by SirRacer

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