installing tachometer - Toyota Nation Forum : Toyota Car and Truck Forums

kuto · 05-06-2005, 07:19 PM

i got a sunpro tach. with 4 wires: ground(black), dashlight(white), batt +(red), and signal(green).i connected all the wires according to instruction except the white(just left it out)..the green is conected to the distributor, black wire, but i dont get ay rpm reading on the tach..anyone hav an idea wat i may be doing wrong

rogerman · 05-06-2005, 07:41 PM

yeah i have a sunpro tach too someone said you have to wire the green one to somethin on the diagnostics box heres the link http://toyotanation.com/forum/t77126.html

toysports2k · 05-06-2005, 07:41 PM

i run my autometer tach from the tach plug-in at the engine fuse box....

el53 · 05-06-2005, 07:54 PM

look for the tach signal wire, try checking the wiring diagram for the model

texas12 · 05-06-2005, 10:10 PM

What are you driving? A 22RE? I did a cluster swap to add a tach. I had to run a wire from (-) coil for the tach, not from distributor.

rogerman · 05-06-2005, 11:36 PM

do you have any pictures?

rogerman · 05-07-2005, 03:40 AM

Alrite I installed my tach today and i tried what Toy Sport 4x4 said and hooked up the signal wire to the ignition (IG) plug next to the diagnostics thing it works idk abot the coil thing i was afraid to mess aroung with it lol

kuto · 05-07-2005, 01:35 PM

thank you for your replys...i'm going to try it out now,,thanks again

Toy Sport 4x4 · 05-07-2005, 01:49 PM

I have a 88 22re 4x4. i installed a sunpro to. You can either wire the green to the ign- terminal on the diagnostic box under the hood or to the negative side of the coil. The white will go to the taillight fuse. I would put the red to the cig. lighter fuse, and the black to the body for a ground.

kuto · 05-07-2005, 06:12 PM

installed mine today, worked fine!..wired the greento the diag box ign-..thanks you guys

rogerman · 05-08-2005, 02:52 AM

how did u connect the wire to the fuse? do you have any pics?

mav7593 · 05-08-2005, 03:04 PM

Toy sport,

Where and how did you mount your tach? I have an 88 as well I want to put one in. Do you have any pics by chance?

Thanks

Toy Sport 4x4 · 05-09-2005, 10:11 PM

Sorry no pics. I mounted the base to the dash near the pillar arm that way it sits in the corner between the two and it is a clear view. The wires can be spliced into the wires on the back side of the fuse box or you can "redneck rigem"

like i did by stripping the wire about a half inch and folding it over one leg of the fuse and force it back into the slot. You don't have to wire it to the fuse box you can make your on inline fuses. I would use a fuse though somehow that way if it is a problem the fuse will blow instead of the wire catching on fire.