digital speedo

[lucio1234]

hi, want to replace my speedo (analog) to digital and read that there is a wire in the binnacle that i can use as a pulse for the unit, is there anyone who can confirm this or do i need a converter and which one thanks

[Riddlemr2]

This should explain how to do it:

http://www.lotusespritforum.com/forums/ind...showtopic=20055

[Glyn Harper]

Yep. I've done it.

Although your car is a 1990, so it won't have a digital pulse wire on your car.

You need to look for a company called 'brantz' who do pulse generators. I got a univeral cable drive one and modified it to fit my gearbox by cutting the orignal cable right back to about 2 inches long, and fitting the pulse generator on the end. It's then just a case or working out the correct amount of pulses, and putting that into your digital speedo.

this is the link to Brantz website for the speed sensors.

http://www.brantz.co.uk/html/english/index.html

Edited January 9, 2009 by Glyn Harper

[lucio1234]

i have a hall sensor that was off a gm product and modified it to fit onto the cable but the needle fluctuates too much and isn,t accurate. I want to purchase a digital readout speedo and use a proper sensor for it, has anyone done that thanks so far for the info

[ragingfool35]

can you use the VSS signal from the ECU?

[lotus4s]

can you use the VSS signal from the ECU?

Yes you can...

[Advantage]

Failing that, Alpine do a Speed Pulse Generator for about

[lucio1234]

what generates the pulse on the vss?

[Advantage]

There's an abs type sensor on the lh rear hub...or is it the rh? There's an abs type sensor on one of the rear hubs.

[lucio1234]

anyone now where the wire is situated and it's color

[s4simon]

Large connector in the binnacle from the ECM - Pin 14. Orange and brown wire.

Which goes to pin 8 of the digital speedo.

[lucio1234]

don't see an orange and brwn just brown and yellow

[s4simon]

Okay that one goes to pin 19. you need to go another 5 pins to the left to find pin 14 which will be the orange and brown pin 14.