tacho wiring - Aussie V8 | Holden - Ford

EFI TonnEr · 01-02-2008, 05:00 PM

Hi guys i have just got a new speco tacho and am not sure how to fit it, it has the green,red and black wires. From what i can see as the instructions are not very good, the green goes to the -ve on the coil the black would be ground and the red to acc, the ute as a VQ stato loom and i have found the brown tacho wire or i think it is, how do i test this and where does it come into the wiring?

Thanks
Tonner

IvanTheTerrible · 01-02-2008, 07:49 PM

Quote:

Originally Posted by EFI TonnEr

Hi guys i have just got a new speco tacho and am not sure how to fit it, it has the green,red and black wires. From what i can see as the instructions are not very good, the green goes to the -ve on the coil the black would be ground and the red to acc, the ute as a VQ stato loom and i have found the brown tacho wire or i think it is, how do i test this and where does it come into the wiring?

Thanks
Tonner

V6 or V8 engine?

EFI TonnEr · 01-02-2008, 09:12 PM

5ltr V8

76lxhatch · 01-02-2008, 09:25 PM

The tacho wire goes to the green one, as you said red is +12V and black is ground. Not really sure how you test the wiring first, I guess at least check that it isn't +12V with the ignition on or off before trying the tach, a small test light or multimeter may flicker a bit with the engine running?

EFI TonnEr · 02-02-2008, 12:38 AM

Sweet 76lxhatch thanks, so the green wire doesnt go anywhere near the coil? will check the brown wire tom and let you know how it went

Tonner

EFI TonnEr · 05-02-2008, 09:14 AM

i checked the brown wire today and with the ign on the test light came on and with the motor going it flickered real quick so does that mean its all good to use? I had the test light earthed out on the body so was using the wire as power

Tonner

76lxhatch · 05-02-2008, 09:27 AM

I'm not so sure about this now - I thought it wouldn't have had any power like that but I've just checked mine and there is some voltage on it exactly as you say. Try it and see, just don't leave it running long if the needle doesn't rise or if it goes all the way up (anything in between can't be wrong).

EFI TonnEr · 05-02-2008, 05:31 PM

sweet thanks 76lxhatch, will let you know how it goes

Tonner

leprkorn · 05-02-2008, 06:00 PM

try this mate:

red - 12v ignition
black - engine ground
green - -ve side of coil or tach terminal on your electronic ignition

cheers,
brett

EFI TonnEr · 05-02-2008, 10:47 PM

is the tacho term the brown wire? If i get time tom i will try it and see

Tonner

leprkorn · 06-02-2008, 06:22 PM

can't say honestly. never wired one up to a terminal b4. always to a coil. sorry mate

SS Hatchback · 06-02-2008, 10:52 PM

Like the others have said
Green usually - ive coil
Black is Ground
Red is 12v ACC
Brown??? Is it for the back light so you can see it at night? usually on autometer its white .

EFI TonnEr · 07-02-2008, 08:08 AM

the brown one is the tacho wire from the loom itself or so i am told its not on the gauge itself, its an injected 5ltr if that makes a diff SS, i have tested the brown wire with a test light while the eng is running and it flickers bloody quickly

Tonner

EFI TonnEr · 07-02-2008, 08:39 AM

finally got off my arse and did a quick hook up, green to the brown tacho wire and all was sweet, thanks for all ya info guys

Tonner

SS Hatchback · 07-02-2008, 08:29 PM

yeah no problem i was thinking those colours were coming from the tacho but you meant the brown was coming from the loom , slight confusion and all sorted now so well done

01-02-2008, 05:00 PM	#1 (permalink)
EFI TonnEr casual poster Trade Rating: (0) Join Date: Jun 2007 Location: numurkah Ride: HQ Tonner EFI 5LTR Posts: 152	tacho wiring Hi guys i have just got a new speco tacho and am not sure how to fit it, it has the green,red and black wires. From what i can see as the instructions are not very good, the green goes to the -ve on the coil the black would be ground and the red to acc, the ute as a VQ stato loom and i have found the brown tacho wire or i think it is, how do i test this and where does it come into the wiring? Thanks Tonner

05-02-2008, 06:00 PM	#9 (permalink)
leprkorn social drinker Trade Rating: (0) Join Date: Oct 2007 Location: Gloucester, NSW Ride: One Tonner Posts: 263	try this mate: red - 12v ignition black - engine ground green - -ve side of coil or tach terminal on your electronic ignition cheers, brett __________________ IF IN DOUBT, POWER OUT! "You wouldn't care what people thought of you if you realised how seldom they do."

06-02-2008, 06:22 PM	#11 (permalink)
leprkorn social drinker Trade Rating: (0) Join Date: Oct 2007 Location: Gloucester, NSW Ride: One Tonner Posts: 263	can't say honestly. never wired one up to a terminal b4. always to a coil. sorry mate __________________ IF IN DOUBT, POWER OUT! "You wouldn't care what people thought of you if you realised how seldom they do."

06-02-2008, 10:52 PM	#12 (permalink)
SS Hatchback Part of the furniture Trade Rating: (0) Join Date: Jan 2005 Location: South Coast Ride: SS Torana, VT Calais Posts: 1,275	Like the others have said Green usually - ive coil Black is Ground Red is 12v ACC Brown??? Is it for the back light so you can see it at night? usually on autometer its white . __________________ http://www.cardomain.com/id/sslxtorana http://www.aussiev8.com.au/members/s...hatchback.html http://s81.photobucket.com/albums/j2...t=Cruise01.flv

07-02-2008, 08:29 PM	#15 (permalink)
SS Hatchback Part of the furniture Trade Rating: (0) Join Date: Jan 2005 Location: South Coast Ride: SS Torana, VT Calais Posts: 1,275	yeah no problem i was thinking those colours were coming from the tacho but you meant the brown was coming from the loom , slight confusion and all sorted now so well done __________________ http://www.cardomain.com/id/sslxtorana http://www.aussiev8.com.au/members/s...hatchback.html http://s81.photobucket.com/albums/j2...t=Cruise01.flv

01-02-2008, 09:12 PM	#3 (permalink)
EFI TonnEr casual poster Trade Rating: (0) Join Date: Jun 2007 Location: numurkah Ride: HQ Tonner EFI 5LTR Posts: 152	5ltr V8

01-02-2008, 09:25 PM	#4 (permalink)
76lxhatch Sure why not? Trade Rating: (0) Join Date: Jan 2007 Location: Nelson NZ Ride: SS Torana Posts: 1,797	The tacho wire goes to the green one, as you said red is +12V and black is ground. Not really sure how you test the wiring first, I guess at least check that it isn't +12V with the ignition on or off before trying the tach, a small test light or multimeter may flicker a bit with the engine running?

02-02-2008, 12:38 AM	#5 (permalink)
EFI TonnEr casual poster Trade Rating: (0) Join Date: Jun 2007 Location: numurkah Ride: HQ Tonner EFI 5LTR Posts: 152	Sweet 76lxhatch thanks, so the green wire doesnt go anywhere near the coil? will check the brown wire tom and let you know how it went Tonner

05-02-2008, 09:14 AM	#6 (permalink)
EFI TonnEr casual poster Trade Rating: (0) Join Date: Jun 2007 Location: numurkah Ride: HQ Tonner EFI 5LTR Posts: 152	i checked the brown wire today and with the ign on the test light came on and with the motor going it flickered real quick so does that mean its all good to use? I had the test light earthed out on the body so was using the wire as power Tonner

05-02-2008, 09:27 AM	#7 (permalink)
76lxhatch Sure why not? Trade Rating: (0) Join Date: Jan 2007 Location: Nelson NZ Ride: SS Torana Posts: 1,797	I'm not so sure about this now - I thought it wouldn't have had any power like that but I've just checked mine and there is some voltage on it exactly as you say. Try it and see, just don't leave it running long if the needle doesn't rise or if it goes all the way up (anything in between can't be wrong).

05-02-2008, 05:31 PM	#8 (permalink)
EFI TonnEr casual poster Trade Rating: (0) Join Date: Jun 2007 Location: numurkah Ride: HQ Tonner EFI 5LTR Posts: 152	sweet thanks 76lxhatch, will let you know how it goes Tonner

05-02-2008, 10:47 PM	#10 (permalink)
EFI TonnEr casual poster Trade Rating: (0) Join Date: Jun 2007 Location: numurkah Ride: HQ Tonner EFI 5LTR Posts: 152	is the tacho term the brown wire? If i get time tom i will try it and see Tonner

07-02-2008, 08:08 AM	#13 (permalink)
EFI TonnEr casual poster Trade Rating: (0) Join Date: Jun 2007 Location: numurkah Ride: HQ Tonner EFI 5LTR Posts: 152	the brown one is the tacho wire from the loom itself or so i am told its not on the gauge itself, its an injected 5ltr if that makes a diff SS, i have tested the brown wire with a test light while the eng is running and it flickers bloody quickly Tonner

07-02-2008, 08:39 AM	#14 (permalink)
EFI TonnEr casual poster Trade Rating: (0) Join Date: Jun 2007 Location: numurkah Ride: HQ Tonner EFI 5LTR Posts: 152	finally got off my arse and did a quick hook up, green to the brown tacho wire and all was sweet, thanks for all ya info guys Tonner

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)

Google Adverts keep this forum alive
Google Adverts

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
VT V6 wiring loom	CAVEMAN	Conversions, Rebuilds & Project Cars	2	19-01-2008 12:26 PM
Installing a Tacho	Scally	Holden V8's	7	06-07-2007 05:55 PM
EFI V8 Fuel Injection problems - Injectors not actuating.	turbotorana	Holden V8's	36	01-07-2007 05:20 PM
hj tacho wiring??	hjtonner	Custom Stylin & Wiring	4	10-05-2006 05:59 PM
Monster Tacho Help!!!	HJ_355	Custom Stylin & Wiring	19	06-04-2006 05:54 PM

Thread Tools
Show Printable Version Email this Page
Display Modes
Linear Mode Switch to Hybrid Mode Switch to Threaded Mode