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test test D2 A8/S8 (1997 - 2003)
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  • Wheel speed sensor / abs issue
    Posted by: eriklane (23147) on 2017-11-06 11:40:17

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    Starting a new thread, abs module was fixed a year ago. Left rear is showing very little reaction on vcds at low speed, and when I hooked up volt meter and ran car with wheel up, nothing. Only at low speed does the abs kick in when braking.
    Had rear axles checked, reluctors not broken. Cleaned also. Tried spare sensors I had. 2 tested .4 ohms, one nothing. One in car tested .4 ohms, appears to not be cracked or broken as I wiggled the wire.
    Maybe it's simple, but how do you actually set the air gap on these sensors?
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