I'm running a Motec M4 ecu on my RB26 in a S13 200sx and I'm trying to get the tacho to work. I'm using a R32 GTR tacho. I've set up the ECU so one of the AUX outputs is set to the tacho signal. I hooked up a multimeter to this wire and I get a RPM / 10000 signal (ie, 800rpm = 0.08 volts) which I've since found out from other theads that the tacho doesn't use this type of signal.
Is there anything I can do to change this signal so the tacho can read it? Or can I use another signal from the ECU that the tacho can use?
