Beiträge von ollli

    Info 1) http://de.wikipedia.org/wiki/Hallsonde


    Info 2)


    CAS (KWS)
    The CAS consists of a toothed disk and an two coils (exciter and modulator). The disk is attached to the crankshaft and
    theoretically comprises 59 teeth set around its circumference. At a position 114° BTDC, one tooth is omitted as a reference to
    TDC and so a total of 58 teeth remain on the disk. A high frequency signal of between 120 and 180 khz is delivered to the exciter
    coil by the ECM.


    As the crankshaft spins, and the teeth are rotated in the exciter coil field, a modulation occurs which is returned to the ECM to
    indicate speed of crankshaft rotation and a reference to TDC as an indication of crankshaft position. The ECM makes a digital
    comparison of both ECM and CAS output signals and registers a phase difference that is proportional to the CAS output.


    If the CAS were to fail, the ECM logs a fault code and enters LOS mode utilising the signal from the CID sensor. If both sensors
    were to fail, ignition operation would be inhibited for safety purposes.


    CID (NWS)
    The camshaft sensor operates on the same principle as the CAS. The CID sensor consists of a disk with one segment and an
    exciter coil. The disk is attached to the camshaft. A high frequency signal of between 120 and 180 khz is delivered to the exciter
    coil by the ECM. As the camshaft spins, and the segment is rotated in the exciter coil field, a modulation occurs which is returned
    to the ECM to indicate the position of number one cylinder. The ECM makes a digital comparison of both ECM and CID sensor
    output signals and registers a phase difference that is proportional to the CID position.


    If the CID sensor were to fail, the ECM logs a fault code and enters LOS mode utilising the signal from the CAS. If both sensors
    were to fail, ignition operation would be inhibited for safety purposes.

    Betreffend Umbau alter NWS 1238915 auf neuen NWS 90458252 mit 93171450
    Weiß jemand an welcher Stelle ( vorne am Stecker oder weiter hinten am Kabelbaum) das neue Kabel angelötet wird ?


    Sind die Aderfarben des neuen Kabels die gleichen wie beim alten oder muss man beim zusammenlöten Aderfarben tauschen?


    Danke schonmal!
    Oli