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  #1  
Old 13-07-2009, 18:11
northerner northerner is offline
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Default ca18det wiring harness

Been looking at my harness today to work out what goes were. I know the How-to gives a list of what wires attach to what but it doesnt state were the wires are from/which plug on the loom. And what about the wires that are left, are these redundant ie to be taped off? If someone could give me the heads up please...
On club-s12, some owners are now saying no relays have to be wired in apart from the re-wired fuel pump
1st picture two plugs Grey 8 pin plug with 7 wires
2nd picture the white plug by the ecu plug


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Old 13-07-2009, 22:55
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if no ones answered this before i get home in a couple of days il get some pics and details up of one of my converted looms
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Old 14-07-2009, 00:45
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Looks like all you have is the engine harness. I took the power harness out of the S13 too which contains the 3 relays and it plugs in to the engine harness.

If you still have access to the S13 to rob it from it's worth using. All you then have is permanant live, igntion live, an earth to get the engine running.

You could run the whole lot off one relay or just have the relay run the fuel pump but then your subjecting more current demand through the ignition switch of the car which otherwise would just switch on relays with less than an amp being drawn, compared to many more amps the other way.
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Old 14-07-2009, 09:38
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After checking and I found the loom that came with the Det engine I got had been hacked. I did however get another full loom which basically covered the whole of the engine. I have found the Relay box from the offside (3 green relays) were the loom goes round the engine bay to the nearside were there is another Relay box. At this end I can see the Brown/Grey connectors you are talking about


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Last edited by northerner; 14-07-2009 at 10:50.
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Old 14-07-2009, 10:54
northerner northerner is offline
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Are you saying I need to strip the Three relays/wires out from the loom all the way to the brown/grey connectors??? If so, I see from the relay box on the Nearside that at least One Blue wire goes into a Blue relay from the Grey connector? Is this going to cause problems when cut or is it just spliced back in ???
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Old 14-07-2009, 11:05
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Yeah I remove from that loom the wires I didn't need. I can't remember what the blue relay was for, but I chucked it out.

You'll end up with a number of black and red wires that feed the relays and the loom for you to put permanent and switched power to.

There's also one very thin black wire that needs to be earthed.
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