Wiring In Tacho S2 Rb25det

[mr-r33]

hi guys want to wire in my tacho SAAS one but want to wire it to the coil wich wire is it that i need to wire it to??

[PROXIMITY]

look up ecu pin outs, their is a rpm wire that you run it off =)

[mr-r33]

look up ecu pin outs, their is a rpm wire that you run it off =)

tryed that not working

i have tryed the wire in the engine bay nothing....i have tryed the wire off the ECU nothing

the tacho is a saas 3 3/4" i think it is wired up ok..

[hks33]

had the same problem and you need a 12volt wave from ur ecu not a 5volt square wave as the series 2 r33 gts25t's have

unfortunately you need to buy the autometer 9117 tacho booster which amplifys the current coming from ur ecu... i got told to try a pullup resistor but i havent gotten around to it yet

[mr-r33]

ok got it to work off a green wire on the ECU but it will only work on 4cly if i put it to 6cly it will hit 2K and drop back to 0 at idle on 6cly it sits on 600rpm on 4 cly it sits at 1000rpm

[hks33]

ok got it to work off a green wire on the ECU but it will only work on 4cly if i put it to 6cly it will hit 2K and drop back to 0 at idle on 6cly it sits on 600rpm on 4 cly it sits at 1000rpm

what pin off the ecu did u run it off? what colour and what colour stripe you may have fixed me problem pin 7 is the rpm signal yellow with blue stripe if iam correct