ABS speed sensors and ISV for Audi RS2

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  • JonRS2
    S2Forum Enthusiast
    • May 2008
    • 128
    • Country: United Kingdom

    #1

    ABS speed sensors and ISV for Audi RS2

    Hello.

    I am struggling to find the following parts for my 1995 Audi 80 Avant RS2:

    2x Front ABS wheel speed sensor (893927803A)
    2x Rear ABS wheel speed sensor (8A0927807C)
    1x Idle Stabilisation Valve (034133455A)

    I don't think the garage looking after my Audi RS2 has VCDS / VAGCOM.

    Problem: ABS activating when coming to a slow stop (boing noise from brake pedal).
    They think that one of the fitted wheel speed sensors is faulty but don't know which one.
    I am told that it will be a case of removing one; fitting a replacement; see if that is the solution; if not, remove second one; fit a replacement, etc. but cannot reuse existing sensors once removed.
    So, I may need four new ABS wheel speed sensors.

    Problem: hunting idle when engine is warm (e.g. when stopped at traffic lights during a long drive).
    They think it may be the ISV (there are no boost leaks from a smoke test).

    Any pointers to where I can find these parts gratefully received.

    At this point I wish I had purchased VCDS / VAGCOM years ago.
    It might have saved me ££££ over the years in time spent diagnosing the cause of problems / purchasing parts that may not be required...
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