E36 328 ABS module pin out - for abs/ecu speed sensor bypass

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  1. E36 328 ABS module pin out - for abs/ecu speed sensor bypass 
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    SteTommo's Car Details
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    I've got a 328 that I use for drifting and the abs light is on, this isn't a problem coz I don't want it on anyway. However because the abs controller isn't sending a sped signal to the ECU it limits the engine to 5300rpm.

    I'm going to connect the diff speed sensor directly to the ECU. I know I can get the feed from pin 2 on the blue plug on the clocks.

    I've been told I can connect this to pin 15 on the ECU or pin 9 on the X20. However I was thinking it would be more convenient to run the wire to the foot well and just connect it to the output on the abs connector.

    Does anyone else know what pin to use on the abs plug?
     
     

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    There isn't much data on what goes on, but I think you'd need a signal from the ABS sensor to the ECU, not the diff speed sensor.
    You can always send the ECU to me and I'll remove it too, but when I've looked into this before, there wasn't a direct speed signal input from the diff like on other cars, but a signal from the ABS ecu, and even then, I can't be sure whether it'll be through the CAN bus, or the wire that links the ABS to the ecu (as there's a good chance that could be used power power reduction when ASC kicks in)
     
     

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    #3
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    I've managed to find loads of threads about it, particularly on drifting forums. Basically the ABS outputs the speed signal in exactly the same format as the diff sensor does so you can use either. The only reason it uses the ABS instead of the diff for the ECU is so that the ECU knows if the ABS isn't working.

    Lots of ppl have done it, but no-ones posted up what pin it is on the ABS, they've all took the speed sensor to pin 9 on the X20, which seems daft when there's already wires runnign through the bulkhead from the ABS
     
     

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    I found it the old fashioned way in the end with a multimeter

    If anyone wants to know you connect the black/white wire from pin 2 on the blue plug behind the instrument panel to the white/purple with yellow rings wire from the abs plug. This is the same as connecting it to pin 9 on the x20.

    No more rev limited when the abs light is on
     
     

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    Interesting.
    I'm sure I've tried similar on 318iS with no luck.
     
     

  8. e36 318 - 328 conversion 
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    hi i have fitted a 2.8 lump into my 318i and i was wondering if this fix will work for me as my car is not revving out and is lacking on power all through the rev range... Ive been told its because the ecu is not receiving a speed signal and this puts the ecu into some kind of limp mode..... any input or help would be much appreciated ;-)
     
     

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