Ok I think I understand how this thing works. Took the adjuster off to see how it work. The rod on the cam does slide freely and changes the idle of the engine if moved manually . I have voltage at the electrical connection. Seems like the magnet isn’t working. Is there a way to test? Perhaps the camshaft timer isn’t adjusted?

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1993 e300
1995 e320
1994 e320
2006 s500 4matic
2004 Jeep wj overland
2001 Ducati 748
2004 Honda shadow aero