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Thread: Need Elecrtical help

  1. #1
    GTRCer
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    Need Elecrtical help

    I have installed an aftermarket RPM gauge into my car which is running an rb25det series 2 but can not seem to figure out how to make it work.

    everything is hooked up in means of power, ground ect just not sure where i am supposed to get or how to get the rpm signal for the gauge to work.

    If you know how or where to do this any help is greatly appreciated.

    Brad

  2. #2
    GTRCer gtrjon's Avatar
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    this is a guess but im assuming your going to have one extra wire after your connected to ground and power and your going to have to splice that into a wire in your ecu harness. but i could be on crack
    1991 Nissan Skyline R32 GT-R:512awhp @ 18psi on rgs dyno

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    GTRCer anthony's Avatar
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    Last edited by anthony; 06-07-2011 at 07:50 PM.
    understeer -is when you go off the road and see the tree that kills you
    oversteer-is when you go off the road backwards and dont see the tree that kills you

  4. #4
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    tried that but didnt work, i might have to pull the tack and make sure its switched right

  5. #5
    GTRCer anthony's Avatar
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    try this one http://www.paulr33.com/diagrams/rb25det-pinout.pdf this is a different rb25 pinout
    series 1 and 2 pinouts are different from what ive read and #7 is in a different spot in this one
    before you go and take your dash apart
    Last edited by anthony; 06-08-2011 at 03:52 AM.
    understeer -is when you go off the road and see the tree that kills you
    oversteer-is when you go off the road backwards and dont see the tree that kills you

  6. #6
    GTRCer caliber676's Avatar
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    Don't you wish it was like the old days where you could just splice into a coil. Anyways, your RPM is going to be through an ECU pinout for sure
    “Hey, come on, its a car right? No. It’s a symbol of your history, its a thread of continuity from which you came to where you are. It’s important that you don’t want to forget who you are.” -Dr.Phil in "Love the Beast"

  7. #7
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    Quote Originally Posted by anthony View Post
    try this one http://www.paulr33.com/diagrams/rb25det-pinout.pdf this is a different rb25 pinout
    series 1 and 2 pinouts are different from what ive read and #7 is in a different spot in this one
    before you go and take your dash apart
    Ya this is the pin out I have aswell.
    I will try it again and see if it works but if now I will be taring the gauge cluster out and seeing if all is good there.

  8. #8
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    So I tried the wire and even tried on 2 other tachs to see if mine was no good and I am not getting a tach read out

    is there anywhere else to get a proper tach signal from?
    running an rb25det series 2 on track with a tach is kinda not my cup of tea

  9. #9
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    tap it on cas and one on lighter to light up then ground

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