help wiring a tach

87toyy · 09-05-2009, 01:42 PM

i was given an aftermarket tach i want to put in my 90 pickup.anyone know how to hook it up? its got 4 wires red,green,white and black. i'd say black would be the ground jsut need to know where to hook the other 3 in.

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camo31"10.50" · 09-05-2009, 02:15 PM

the red and white will go to you dash lights..it is what gives it light..look online for some instructions and it will tell you where you need to put em..

the green wire is the RPM signal..you could just tap into the tach plug that is on your coil..if its wired for a tach..

94YOTAG · 09-05-2009, 10:08 PM

i just installed a sunpro super tach in my 94 single cab std. bed. the black ground i connected to an already established ground behind the drivers side kick panel, the red power also went behind the kick panel but into the fuse block this time. the green signal wire i spliced into the black coil wire. and the white light wire i also plugged into the fuse block as a constant on because i had issues with connecting mine to the dimmer switch then i screwed into the steering column shroud and hung the tach on top and to the left a little bit

camo31"10.50" · 09-05-2009, 10:28 PM

exactly..

i have the white wire going to the dash light fuse in the fuse block..and the red wire is going to the ignition fuse and the black is grounded (of course) and the green is tapped into my tach wire..

LooseNuts · 09-10-2009, 12:11 AM

yup same as mine.
green to the coil
black to ground
red to switched power
white to dash lights.

and make sure if its adjustable to put it to 4cyl. haha when its on 6cyl the rmps look pretty wierd.

87toyy · 09-10-2009, 11:12 AM

i'm gonna try hooking it up this weekend. came out of a 4 cyl toyota so shouldnt have a problem with it being for a 6

09-05-2009, 02:15 PM	#2 (permalink)
camo31"10.50" Registered User Join Date: Aug 2007 Location: Vian, OK Posts: 2,081	the red and white will go to you dash lights..it is what gives it light..look online for some instructions and it will tell you where you need to put em.. the green wire is the RPM signal..you could just tap into the tach plug that is on your coil..if its wired for a tach.. __________________ FOR SALE 1986 Ext. Cab 4x4, rebuilt 22R, 5spd, 31x10.50 X-Terrains FOR SALE 1992 SR5 FO RUNNA V6, 5 speed, 4in. trail-master lift, 33x12.50 BFG muds, 4.56 gears!!! and an IMMACULATE interior..yes..you should be jealous "Its still a toyota man.. Dont deprive it of its capabilities.." "If you can read english, Thank a teacher...If you can speak it, Thank a soldier!!" Kelli Ruark-2009

09-05-2009, 10:08 PM	#3 (permalink)
94YOTAG Registered User Join Date: Aug 2009 Posts: 5	i just installed a sunpro super tach in my 94 single cab std. bed. the black ground i connected to an already established ground behind the drivers side kick panel, the red power also went behind the kick panel but into the fuse block this time. the green signal wire i spliced into the black coil wire. and the white light wire i also plugged into the fuse block as a constant on because i had issues with connecting mine to the dimmer switch then i screwed into the steering column shroud and hung the tach on top and to the left a little bit __________________ 94 truck .slow, 5sp. 22re, 4in. superlift 33.12.5'' bfg mt's, pro comp streetlock 15x10's sony head unit 2 4x6's in the dash 1 10'' sub 1000w amp Last edited by 94YOTAG; 09-05-2009 at 10:12 PM.

09-05-2009, 10:28 PM	#4 (permalink)
camo31"10.50" Registered User Join Date: Aug 2007 Location: Vian, OK Posts: 2,081	exactly.. i have the white wire going to the dash light fuse in the fuse block..and the red wire is going to the ignition fuse and the black is grounded (of course) and the green is tapped into my tach wire.. __________________ FOR SALE 1986 Ext. Cab 4x4, rebuilt 22R, 5spd, 31x10.50 X-Terrains FOR SALE 1992 SR5 FO RUNNA V6, 5 speed, 4in. trail-master lift, 33x12.50 BFG muds, 4.56 gears!!! and an IMMACULATE interior..yes..you should be jealous "Its still a toyota man.. Dont deprive it of its capabilities.." "If you can read english, Thank a teacher...If you can speak it, Thank a soldier!!" Kelli Ruark-2009

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09-10-2009, 12:11 AM	#5 (permalink)
LooseNuts Registered User Join Date: Aug 2009 Posts: 29	yup same as mine. green to the coil black to ground red to switched power white to dash lights. and make sure if its adjustable to put it to 4cyl. haha when its on 6cyl the rmps look pretty wierd.

09-10-2009, 11:12 AM	#6 (permalink)
87toyy Registered User Join Date: Feb 2009 Location: nova scotia,canada Posts: 77	i'm gonna try hooking it up this weekend. came out of a 4 cyl toyota so shouldnt have a problem with it being for a 6