URS4 AAN not starting after cam shaft wheel swap

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  • Macek
    S2Forum Tinkerer
    • Jan 2025
    • 4
    • Country: Czech Republic

    #1

    URS4 AAN not starting after cam shaft wheel swap

    Hi, i have URS4 with swapped Emu Black - did it myself and wiring stayed thanks to the emu black adapter to original car socket.

    Car was running great, but i have decided to do timing belt due to failing water pump. With that i purchased the adjustable cam wheel, coolant pump from RS2 (26t) and 150t timing belt. I put it together and it did not start. It seemed like it wanted but did not. In Emu everything was in SYNC while cranking. ECU claims no issues whatsoever.

    Later i realized that i did not check the notch for the cam shaft sensor and i was right about that. I adjusted the notch approximately to the previous wheel ( i had ti cuz there is slso a notch in the intake camshaft itself, and it seemed that i wants ti start even more but u was not successful.

    Anybody sny tips on what to check? Iam posting the wheel i bought and some screens from Ecumaster

    Before i touched the car, it was running great ofc.
    the timing belt should be correct, although the 0 degree mark on the flywheel is not visible, but its on the same mark it was before i did timing belt (somebody did there a custom mark). Spark is there, fuel is there.

    I tried everything..
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