928sg Posted September 17, 2020 Report Share Posted September 17, 2020 I'm adding this here, because I posted on Facebook but that is a horrible place to keep technical info because searching for stuff even a few weeks old is difficult. I asked: what is the consensus on using the ABS sensors for traction control? ECU is Link Thunder, and it would be preferable to not interfere with the ABS system. Adamw: The Thunder differential DI’s 11-16 are specifically designed for tapping into ABS signals without upsetting the ABS. Assuming they are common VR or hall sensors (not magnetoresistive) me: Front ABS sensor is the same as the Porsche 944 and 968. This is for a Porsche 928. They have a metal shell on them which on the below link indicates they are passive. https://www.apecbraking.co.uk/.../Techni.../ABS-Sensors.aspx Adamw: The 928 Front sensors will be VR Me: rear abs sensors are the same as front just different wire lengths https://www.boschautoparts.com/en/auto/adas/wheel-speed-sensor?partID=0265001118&fbclid=IwAR1GqYZhpppJI2yvq8NACCadDZUX2qlIH90qcQ2H1zIwqv1SDqVoc2vQ_iQ I wanted to post this here so that others can search and find this info. additional follow up question. for a VR sensor would we use the DI positive or negative inputs for the Thunder ECU? Quote Link to comment Share on other sites More sharing options...
Adamw Posted September 17, 2020 Report Share Posted September 17, 2020 5 hours ago, 928sg said: additional follow up question. for a VR sensor would we use the DI positive or negative inputs for the Thunder ECU? Connect both + & -. Quote Link to comment Share on other sites More sharing options...
Mike928 Posted January 5, 2021 Report Share Posted January 5, 2021 We just bit the bullet with this and on my ABS unit, 1986, the following was found with a multi-meter at the Bosch ABS loom plug at the unit itself; Front Left red pin #4, earthed Front Left red pin #6, not earthed Front Right green pin #21, earthed Front Right green pin #11, not earthed Rear Left white pin #9, earthed Rear Left white pin #8, not earthed Rear Right yellow pin #26, earthed Rear Right yellow pin #24, not earthed. So, I have run wires from Plug 'C' pins DI 11+, DI 12+, DI 13+ and DI 14+ to ABS pins 6, 11, 8, and 24 and DI 11-, DI 12-, DI 13- and DI 14- to ABS pins 4, 21, 9, and 26. I hope this is correct?? Quote Link to comment Share on other sites More sharing options...
Adamw Posted January 5, 2021 Report Share Posted January 5, 2021 53 minutes ago, Mike928 said: I hope this is correct?? Yes, sounds alright. Quote Link to comment Share on other sites More sharing options...
Mike928 Posted January 7, 2021 Report Share Posted January 7, 2021 Here is my wiring plan. Link Thunder to ABS.pdf Quote Link to comment Share on other sites More sharing options...
h82lose91 Posted January 7, 2021 Report Share Posted January 7, 2021 Just to add to this thread. Im using the advanced wheel speed sensor setup from https://mapdccd.com/awss.html This ties into your abs sensors, sends a vehicle speed sensor signal (had to do this because trans had no speed sensor) and this also has a slip output to tie into ecu. This was primarily designed for subarus, but should work with anything using similar abs sensors. Quote Link to comment Share on other sites More sharing options...
Adamw Posted January 8, 2021 Report Share Posted January 8, 2021 12 hours ago, h82lose91 said: Just to add to this thread. Im using the advanced wheel speed sensor setup from https://mapdccd.com/awss.html This ties into your abs sensors, sends a vehicle speed sensor signal (had to do this because trans had no speed sensor) and this also has a slip output to tie into ecu. This was primarily designed for subarus, but should work with anything using similar abs sensors. Not sure what the point is, the Thunder or any of our G4X ecu's will do all of that directly without any extra box as well more functionality such as you can choose to use fastest, slowest or averaged wheelspeeds etc. Quote Link to comment Share on other sites More sharing options...
h82lose91 Posted January 8, 2021 Report Share Posted January 8, 2021 Limited DI available on a G4+ setup, only DI7 and DI11 left available. In case anyone ran into the same issue. Quote Link to comment Share on other sites More sharing options...
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