Need Elecrtical help

[Turbo_Crazy]

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

[gtrjon]

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

[anthony]

pin #7 on the ecu http://www.allpinouts.org/index.php/...ne_RB25DET_ECU

[Turbo_Crazy]

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

[anthony]

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

[caliber676]

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

[Turbo_Crazy]

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.

[Turbo_Crazy]

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

[markc32]

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