DIY: TACH INSTALLATION INSTRUCTIONS - Page 9 - Toyota Yaris Forums

RedRide · 07-05-2010, 08:54 PM

Later models do no have the greenish-blue wire for the tach.
My '09 for example has a brownish wire for the tach.
Just use the wire that is in the correct position regardless of what the color might be.

darkMINI · 07-05-2010, 09:05 PM

WILCO, thanx

darkMINI · 07-12-2010, 10:45 PM

Ok, next question, got the tach mounted and hooked up. Its an 8,000 rpm tach and it for reads perfectly up to 3,500rpm, but it for some reason won't budge any further. Ant ideas? Thanks

fmicle · 07-13-2010, 01:13 AM

Defect? Can you see any obstruction that would prevent the needle from moving?

darkMINI · 07-13-2010, 02:27 PM

I guess it could be a defect. I have everything hooked up except the Illumination wire, and I don't believe that matters.
Its a 4,6,8 cylinder model and the switch is set on 4.

fmicle · 07-15-2010, 01:13 AM

Yeah, if it doesn't want to move past 3500 rpm, there must be something wrong inside...

darkMINI · 07-16-2010, 01:37 AM

Yep, went back to the auto parts store and borrowed a brand new one to compare it right in the parking lot. It turns out I had a bad tach, so they swapped me for the good one on the spot. Now I'm in business!

fmicle · 07-16-2010, 01:45 AM

Haha, sounds familiar, I had the same problem with my tach, got a new one, worked fine, so I returned the bad one.

RedRide · 07-16-2010, 02:01 PM

Quote:

Originally Posted by darkMINI

Yep, went back to the auto parts store and borrowed a brand new one to compare it right in the parking lot. It turns out I had a bad tach, so they swapped me for the good one on the spot. Now I'm in business!

Glad you got it workin'.

Where did you mount your tach? Is is a panel mount or a pedestal mount?

CueBall · 09-22-2010, 02:38 PM

Fmicle, did you mount your tach in the glovebox? I cant see the pics.

sleey0 · 09-22-2010, 02:42 PM

Wish some company would come out with a nice A pillar guage pod already lol.

I am not a fan of drilling thru the driver's side compartment like that.

I suppose even using guage pedastals and drilling them into the A pillar would work (garm had a pic and he did this with his tc IIRC).

maxxman420 · 09-22-2010, 03:10 PM

i really need to do this. i have the same tach but in white. mine is just sitting where that johnson and johnson thing is sitting in the side cluster. haha

fmicle · 09-23-2010, 01:13 AM

Quote:

Originally Posted by CueBall

Fmicle, did you mount your tach in the glovebox? I cant see the pics.

OK, try to click on the links directly...

http://public.blu.livefilestore.com/...720.jpg?psid=1
http://public.blu.livefilestore.com/...723.jpg?psid=1
http://public.blu.livefilestore.com/...724.jpg?psid=1

RedRide · 10-12-2010, 10:41 PM

Quote:

Originally Posted by suzu

guys, i know that its great to get help in installing a tach. BUT i must say for some of the experienced stick sh. (manual) drivers, like myself, the tach is not necessary. i drive by hearing the engine and i can tell you it works perfectly OK. i am just curious....how many of you are actually gonna use the tach for the purpose of changing gears.

Granted, you can drive a car without a tach.
However, have you ever seen a race or performance car without one or ever heard of a race driver etc who does not insist on one?

Besides if you got your sys turned up, you can't hear the engine that well can you.

Anyway, one really does not use a tach for changing gears as a matter of routine. A tach is simply just one more way of monitoring an engine

BTW I have been driving a manual for the last 45 years!

fmicle · 10-13-2010, 12:41 AM

Quote:

Originally Posted by RedRide

BTW I have been driving a manual for the last 45 years!

Wow, that would make you at least 61 years old!

RedRide · 10-14-2010, 02:01 PM

Quote:

Originally Posted by fmicle

Wow, that would make you at least 61 years old!

Actually, I am 63 years old!

Just abouit every car I ever owned was a manual because I enjoy going through the gears and driving in general.

BTW, my very first car was a '57 Chevy and my second one was a "55 Chevy. Back then, they were not yet considered classics. They were just cheap older cars

metalshark · 10-15-2010, 12:14 PM

Tach dreamer update: I've finished the 33 LED analog display installed in the display trim similar to my earlier BS2 tach. Those of you from the LA basin may have seen the only operational prototype of the gen 1 tach. I've finished the firmware (with the help of Prallax.com forum members) on a breadboard for a digital readout. It's running in my Yaris today. I'm changing the 4x7 segment display from red to green. I had a setback learning to solder surface mount chips for the analog display.
I'll have to do a version 1.1 layout before it's kit ready. I love the headrest video camera mount I found here. When success is apparent watch for the video coming soon to a forum near you.

OTB · 12-06-2010, 06:37 PM

A question for this installation....

Could you also tap the tach and illumination wires that plug into the main speedo panel? There is a tach signal even for cars without a tach display. I know becuase I plugged a canadian panel into an american liftback and the tach worked fine.

cheers

07-13-2010, 01:13 AM	#148
fmicle Drives: 2007 Yaris LB Join Date: Mar 2007 Location: San Jose, CA, USA Posts: 685	Defect? Can you see any obstruction that would prevent the needle from moving? __________________ 5% Tint Rear \| Micro Image LED Ignition Light Kit

07-15-2010, 01:13 AM	#150
fmicle Drives: 2007 Yaris LB Join Date: Mar 2007 Location: San Jose, CA, USA Posts: 685	Yeah, if it doesn't want to move past 3500 rpm, there must be something wrong inside... __________________ 5% Tint Rear \| Micro Image LED Ignition Light Kit

07-16-2010, 01:37 AM	#151
darkMINI View User's Garage Drives: 08 hatch Join Date: Jul 2010 Location: C-Springs Posts: 101	Yep, went back to the auto parts store and borrowed a brand new one to compare it right in the parking lot. It turns out I had a bad tach, so they swapped me for the good one on the spot. Now I'm in business! __________________ '08 3dr HB, Black Sand, AEM, 16x6.6 Mini-Cooper wheels, DynoMax, Cruise, de-TPMS'ed.

07-16-2010, 01:45 AM	#152
fmicle Drives: 2007 Yaris LB Join Date: Mar 2007 Location: San Jose, CA, USA Posts: 685	Haha, sounds familiar, I had the same problem with my tach, got a new one, worked fine, so I returned the bad one. __________________ 5% Tint Rear \| Micro Image LED Ignition Light Kit

10-15-2010, 12:14 PM	#161
metalshark MetalShark Drives: 2008 Yaris LB Join Date: Oct 2008 Location: Mesa, AZ Posts: 104	Tach dreamer update: I've finished the 33 LED analog display installed in the display trim similar to my earlier BS2 tach. Those of you from the LA basin may have seen the only operational prototype of the gen 1 tach. I've finished the firmware (with the help of Prallax.com forum members) on a breadboard for a digital readout. It's running in my Yaris today. I'm changing the 4x7 segment display from red to green. I had a setback learning to solder surface mount chips for the analog display. I'll have to do a version 1.1 layout before it's kit ready. I love the headrest video camera mount I found here. When success is apparent watch for the video coming soon to a forum near you. __________________ Absolutely red, Drawtite hitch, CAI, Insulated Header, Amsoil 5w-30, Mag-drain plug, Red-Line MT-90 tranny oil, Scotch-Guard, Window Tint, Dash rug, Custom short throw shifter, Lowered OEM arm rest, Super-Turbo muffler/w chrome slash cut tip., TRD rear sway bar, sticky pads, front shock tower bar, RS grill badge, VVT-i emblems, Second tire set from Tirerack.com, DISABLED DAY TIME RUNNING LIGHTS, platform- style locking custom bike rack. 86K miles so far. 5 years use now on ceramic wrapped insulated stainless-steel header. Last edited by metalshark; 10-15-2010 at 12:15 PM. Reason: grammer

07-05-2010, 08:54 PM	#145
RedRide Drives: '09 Yaris carmine red 2d HB Join Date: Jun 2009 Location: Middletown, NY Posts: 1,502	Later models do no have the greenish-blue wire for the tach. My '09 for example has a brownish wire for the tach. Just use the wire that is in the correct position regardless of what the color might be.

07-05-2010, 09:05 PM	#146
darkMINI View User's Garage Drives: 08 hatch Join Date: Jul 2010 Location: C-Springs Posts: 101	WILCO, thanx

07-12-2010, 10:45 PM	#147
darkMINI View User's Garage Drives: 08 hatch Join Date: Jul 2010 Location: C-Springs Posts: 101	Ok, next question, got the tach mounted and hooked up. Its an 8,000 rpm tach and it for reads perfectly up to 3,500rpm, but it for some reason won't budge any further. Ant ideas? Thanks

07-13-2010, 02:27 PM	#149
darkMINI View User's Garage Drives: 08 hatch Join Date: Jul 2010 Location: C-Springs Posts: 101	I guess it could be a defect. I have everything hooked up except the Illumination wire, and I don't believe that matters. Its a 4,6,8 cylinder model and the switch is set on 4.

09-22-2010, 02:38 PM	#154
CueBall Ruler of the free world Drives: 09 Yaris 2D HB Join Date: Jul 2010 Location: Utah Posts: 49	Fmicle, did you mount your tach in the glovebox? I cant see the pics.

09-22-2010, 02:42 PM	#155
sleey0 Drives: 2008 Yaris LB Join Date: Jul 2010 Location: PA Posts: 899	Wish some company would come out with a nice A pillar guage pod already lol. I am not a fan of drilling thru the driver's side compartment like that. I suppose even using guage pedastals and drilling them into the A pillar would work (garm had a pic and he did this with his tc IIRC).

09-22-2010, 03:10 PM	#156
maxxman420 prop215. Drives: Toyota Yaris LB Join Date: Sep 2010 Location: San Diego, Ca Posts: 52	i really need to do this. i have the same tach but in white. mine is just sitting where that johnson and johnson thing is sitting in the side cluster. haha

12-06-2010, 06:37 PM	#162
OTB Drives: 2zz MR-2 Spyder Join Date: Nov 2010 Location: Utah Posts: 65	Wiring question A question for this installation.... Could you also tap the tach and illumination wires that plug into the main speedo panel? There is a tach signal even for cars without a tach display. I know becuase I plugged a canadian panel into an american liftback and the tach worked fine. cheers

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