tacho wiring

edgie · tinkerer Joined: 05 Aug 2002 Posts: 107

i just got a tacho out of an old honda acord its the right size to replace the clock but i can't get it to work

it has three wires .. black,blue and yellow
how do i hook this up its the extra wire thats got me buggered

edgie

martin · backyard mechanic Joined: 04 Oct 2001 Posts: 900

i'd be thinking, positive, ground and the negative side of the coil?

all accords were 4cyl right? cause if it came from a six it probably won't work

try using the search up the top, theres been heaps of posts about wiring up tacho's from other cars and aftermarket ones etc

engagegra · rice boy Joined: 03 Dec 2001 Posts: 29

Sorry can't help with the wiring just thought I'd let you know if the tacho did come out of a six you can get them recalibrated to a four. I got my tacho out of a 6 cylinder ford cortina which I had recalibrated and fitted it where the clock was in my TD. It had only 2 wires though, red and black.
Gra.

edgie · tinkerer Joined: 05 Aug 2002 Posts: 107

yeah got it workin yellow to battery/ign blue to coil black earth