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Wheel Speed Pickup (Driven & Un-driven)


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Ok so were taking wheel speed sensors here, I'd like to know how other's have gone about picking up their wheel speeds for devices in which use them for such toys like launch control (not the mickey mouse kind) and traction control.

And before someone jumps up and says use the abs sensors from the front and back hubs. I would like to retain the abs or at least not interfere with the abs system.

In other words is anyone else running two abs/wheels speed sensors per hub or corner. I'd just like to see how others have gone about this task.

Driven wheel speed is taken obviously from the front and un-driven from the back.

Also has anyone tried taking the driven wheel speeds from the gearbox through a sensor.

Any shared info would be great.

Edited by D3N0
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Could you setup an extra sensor using the abs trigger wheels and input that way?

That's what I'm currently doing, but wanted to see how others have done it. Where did you mount the sensor because I know there's only one hole for a abs sensor. Don't really want to attempt drill through cast iron to made another one.

However I do mine.... I'll share some pics.

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i have a few thoughts about this by taking off the speedo cable and putting a yaris 3 pin speed sensor in the gearbox just need to change the plastic gear and fit on to the sensor which reads off the final drive gear



also could you not tap in to the wires to read off the sensors aswell ?

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Yaris diff speed sensor but then you loose dash speedo

Definitely an option for driven wheel speed. Only thing... I'll probably have to replace the dash with an electronic one... maybe a SARD stack display. But even on dash replacements we don't really have an option like other European cars.

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i have a few thoughts about this by taking off the speedo cable and putting a yaris 3 pin speed sensor in the gearbox just need to change the plastic gear and fit on to the sensor which reads off the final drive gear

also could you not tap in to the wires to read off the sensors aswell ?

I'm liking the yaris 3-Pin idea definitely. But that wouldn't work with our dash clocks though.

Im using the JT-Innovation Toucan display unit, but where it sits in the car I I wouldn't want to use it to guage my vehicle speed.

I see what your saying about tapping into the existing wires, but which ever way you look at it..... its still botch. Preferably you'd want to leave that alone really.... safety device etc.

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The stock dash is converting the mechanical signal to square wave signal for the ecu.

Check your ecu pinout and find this cable. This will give you the front wheel speed.

For the rear, just tap in the abs sensor signal.

I appreciate your comment mate, but the oem ecu went in the bin along time ago.... followed shortly by the oem loom.

Either way will have a tinker with it this weekend, I may just decide to just splice into the abs sensor wires.

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  • 2 weeks later...

If your splicing in to them best do it under the drivers side dash where they all meet to go into the abs Ecu ;)

I'm under the dash at the moment....

What does the abs ecu look like?

Im looking to have the traction control and launch control hooked up tonight.

A pic would help... cheers bud.

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  • 3 months later...

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