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Tacho
Posted: Wed Nov 15, 2006 3:32 pm
by robdddd
Recently put an EJ22 in my L series.....there is a wire from the computer that is fo a Tacho, will this be suitable to run any off the shelf tacho? I assume it is just sending some sort of pulse signal ?
Posted: Wed Nov 15, 2006 4:06 pm
by stinky
yeah it should be. the one off my EJ18 works fine with the indash tacho on my '81 sedan.
Posted: Wed Nov 15, 2006 7:29 pm
by Subafury
either that or connect it to the negative side of the ignition coil.
Posted: Wed Nov 15, 2006 9:34 pm
by SuBaRiNo
Subi that wont work with an EJ22.
And yes that wire on the ECU will run any tacho... factory or aftermarket... there was some debate before to what the signal outputs but i have run mine off the factory one in the dash and an aftermarket one.
It is a negative pulse just like the negative side of the coil puts out.
Dave
Posted: Wed Nov 15, 2006 9:35 pm
by SuBaRiNo
I can help with the ECU pinout for the tacho wiring if u need it too.
Dave
Posted: Wed Nov 15, 2006 10:53 pm
by tim_81coupe
Black Blue on a 4 plug ECU.... can't remember which plug exactly but the wire is black/blue.
Posted: Wed Nov 15, 2006 11:26 pm
by SuBaRiNo
ECU pinouts.
Dave
Posted: Thu Nov 16, 2006 3:10 pm
by robdddd
Thanks guys..........now I can get a tacho