Panos MZR Posted August 7, 2022 Report Share Posted August 7, 2022 Hello. My mx5 is eqquiped with stock abs and vr sensors. Can I tap on the atock abs sensors and use traction control from the ecu? If so where should the inputs be implemented? DI7-10 work? Will it affect the stock abs system? Tooth count is 44 Quote Link to comment Share on other sites More sharing options...
Electredge Posted August 7, 2022 Report Share Posted August 7, 2022 I'm pretty sure the NB uses mag sensors which usually do not function properly if the signal is shared. I have not tried it on a Miata before though, so I could be wrong. Quote Link to comment Share on other sites More sharing options...
Vaughan Posted August 7, 2022 Report Share Posted August 7, 2022 I have put NB2 rear hubs on my NA and have one of the abs sensors hooked up to the ecu and working, I plan to add the fronts and use them for traction control too. Any DI input will work, I don't see a speed signal until around 15kph (due to voltage being below threshold) so if you want it to work at low speed you will need a comparator setup. Assuming the stock abs system has one of the sensor wires grounded (instead of both floating) then you should be able to wire the grounded wire to your signal ground and the other to your DI input without causing abs fault codes, if both wires are floating then you will need a comparator setup to get differential voltage without pulling one to ground. Quote Link to comment Share on other sites More sharing options...
Panos MZR Posted August 7, 2022 Author Report Share Posted August 7, 2022 When I installed my zf gearbox I had to read speed via the wheel so I tapped on the stock abs sensor and had abs error codes. I then installed another standalone sensor on rear hub to work properly. This is what am afraid is going to happen with the Link. Quote Link to comment Share on other sites More sharing options...
Vaughan Posted August 7, 2022 Report Share Posted August 7, 2022 Have you checked to see if one of the wheel speed sensor wires is grounded through the abs computer? Quote Link to comment Share on other sites More sharing options...
Adamw Posted August 7, 2022 Report Share Posted August 7, 2022 Most of the older cars like this are happy to share ABS sensors in my experience. I suggest do a real crude test to confirm, it doesnt need to be flash, just grab a couple of pieces of wire, backprobe into a sensor connector or at the ABS plug, connect to the ecu and see what happens. If you get an ABS light, then swap polarity and try again. Quote Link to comment Share on other sites More sharing options...
Panos MZR Posted August 8, 2022 Author Report Share Posted August 8, 2022 The issue is that i don't have the ecu. I want to know if it works so I can order it Quote Link to comment Share on other sites More sharing options...
rrob Posted August 8, 2022 Report Share Posted August 8, 2022 Ive used the ECU Master wheel speed to CAN adapter successfully. Abs was happy and all 4 wheel speeds over can to the ECU. Quote Link to comment Share on other sites More sharing options...
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