wiring help

Discuss the RB20, RB25 and RB26 series engines.
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lexrob
Posts: 202
Joined: Sat May 02, 2009 6:51 pm
Car: s14 95'

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I got Rb prewired for an s14 manual. Mine was an auto that i swapped to a manual.

If i disconnect both (green) relays and connect the bat.-the fuel pump primes and the ecus light comes on.???

All relay wires have power but 2 orange and 1 solid white?


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lexrob
Posts: 202
Joined: Sat May 02, 2009 6:51 pm
Car: s14 95'

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Just got done ripping open all conduit and electical tape.Took out my blowermotor and EASY to get toooo.

Any ideas on remounting blower motor to have just heat?Im thinkin duct-tape just to make it easy to get to wiring harness.

Ill post up some pics tomarrow hopefully i fig it out. I never knew there was that many friken wires or that my wiring harness is from an auto skyline. Wish me luck maybe ill try and add to the skimpy rb s14 wiring guides. (they are probly great but confuse the crap out of me)

240z4u
Posts: 2071
Joined: Mon Feb 21, 2005 4:47 am
Car: '95 Nissan 240SX

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You should be able to block off the A/C part, however keep in mind I think that is also the area where it brings in fresh air for defrost. Might be wisest to modify that assembly to leave more space. For that matter, why even leave it out? Fix the wiring and put it back together.

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lexrob
Posts: 202
Joined: Sat May 02, 2009 6:51 pm
Car: s14 95'

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It brings in fresh air from undercowl. Ill throw up some pics if it comes out looking ok. I just want to have easy access to the harness with the dash in.

crazyandevil05
Posts: 83
Joined: Sun Jul 01, 2007 1:02 pm
Car: 1995 240sx SE, RB25

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just curious, but who did your wiring? thanks

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lexrob
Posts: 202
Joined: Sat May 02, 2009 6:51 pm
Car: s14 95'

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Guy that had it before me. I've been going thru it and it looks pretty good soldered connections and all. Im convinced its my relay's because he said he had no problem turning it off. I double checked but maybe im missing something pic.?? anyone

Im using the relays from my ka harness maybe that was my mistake.

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lexrob
Posts: 202
Joined: Sat May 02, 2009 6:51 pm
Car: s14 95'

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I decided to pull out my whole harness and fix it up. Mostly because i went in and cut out some unused wiring and opps... now it doesnt work. ):



Hopefully you guys can help me out. Wanted to send it out to get done professionally but they wont take it.......needless to say HELP im tryin but im no wiring master.



Im still confused on the relays... does this look right?? I had power at all wires but three (oranges and the white)



The f3 plug stuff still confuses me. Ive looked at all the guides and they help a little but the main one is all jumbled up. I understand some wires need constant from f3-(17) but which ones?

and just about everything else gets it from f3-(1)

Help me out guys this is kind of my daily.....yea i know............ if it aint broke dont fix it(break it). This sucks so bad

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Carl H
Posts: 5985
Joined: Mon Aug 04, 2003 4:09 am
Car: 1995 Nissan 240SX SE RB30DET

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who did the harness originally, it looks similar to how i set the ones i convert up.if it DID pass thru my hands then there wont be any plugs that need to be removed nor stray wires.you'll need to reconnect the old green relays as the skimpy thin gauge wire you're trying to pull power thru on the blue relay plugs will fry and possibly cause a fire.just play match the colour on the green plugs and you'll be fine.

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lexrob
Posts: 202
Joined: Sat May 02, 2009 6:51 pm
Car: s14 95'

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...I wish i would have thought of that. I actually spiced in the blue ones from my s14 harness.

I fried my ecu that might have been the cause. Im not shur if you did it diag. plugs were on it I cut em off. It was matts14's. Let me know if you could take a look at it for me i've given up.

The original problem was it stayed on all the time maybe the gauge was the only problem.........


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