Signal Amplifiers And Aftermarket Rpm Gauges

[hks33]

hey skyline lovers,

had to travel to the other side of town the other day just to get a damn signal amplifier which i payed through the roof for $160.. as i was told the 5-7 square volt wave coming from my ecu (pin 7) yellow and blue stripe wire isnt enough to give me a rpm reading i currently have the tacho grounded and hooked up to me acc it has power but when connected to my rpm signal no rpm reading when the car is started, just when i thought i had it under control with the signal amplifier when it was connected there was still no reading... im ready to smash the tacho and fkn signal amplifier with a big hammer if any body knows a easier way feel free to let me know

thanks for everyones time and help chris

[boostn0199]

Is this in a r33? Ive had tachos shift lights and turbo timers all hooked up and they showed rpm fine without any signal amplifier dont rember which pin I used since long time ago but yeah If you got right pin id say its the gauge.

[hks33]

sure is for a r33