Lsa coils on na6,can’t get tacho to work

Audio, Electronics and Lighting questions and answers

Moderators: timk, Stu, zombie, Andrew, -alex, miata

Post Reply
mk
Fast Driver
Posts: 192
Joined: Sat Dec 26, 2015 5:57 pm
Vehicle: NA6

Lsa coils on na6,can’t get tacho to work

Postby mk » Tue Jul 24, 2018 5:11 pm

Got a na6 with plug and play haltech
Wired up my lsa (ls2 are the same) but can’t get the tacho to work
Any suggestions
Thanks Peter
Top
User avatar
hks_kansei
Speed Racer
Posts: 6154
Joined: Tue Feb 03, 2009 10:43 am
Vehicle: NB8A
Location: Victoria

Re: Lsa coils on na6,can’t get tacho to work

Postby hks_kansei » Tue Jul 24, 2018 5:46 pm

If I recall, on the NA6 the tach is dríven from the stock coils.

I believe you'll need to wire the tach to the tach output of the ECU.
1999 Mazda MX5 - 1989 Honda CT110 (for sale) - 1994 Mazda 626 wagon (GF's)
Top
User avatar
beavis
Forum sponsor
Posts: 1405
Joined: Mon Feb 02, 2009 12:31 pm
Vehicle: NB8B - Turbo
Location: Melbourne

Re: Lsa coils on na6,can’t get tacho to work

Postby beavis » Tue Jul 24, 2018 9:31 pm

The OEM ignitor drives the factory RPM gauge in the gauge cluster... when the igniter is removed an ECU dríven tacho signal needs to be setup and wired to the gauge cluster.
The easiest way to achieve this is to run a wire directly from your aftermarket ECU using the relevant output to the gauge cluster and connect it to the tacho gauge input on the cluster.
Turbo NB Build Thread | BeavisMotorsport.com | YouTube.com/bbeavis | Cars: NA6, NA8-VVT, NB-Turbo, ND-2L
Top
mk
Fast Driver
Posts: 192
Joined: Sat Dec 26, 2015 5:57 pm
Vehicle: NA6

Re: Lsa coils on na6,can’t get tacho to work

Postby mk » Mon Aug 20, 2018 3:07 pm

Got it working
Thanks to all
If you have a haltech is the violet and black wire
I got a tach signal from the diagnostic port
Yellow and blue wire
Splice it in the haltech wire and job done
Top
Post Reply

Return to “MX5 Audio, Electronics & Lighting”

Who is online

Users browsing this forum: No registered users and 121 guests