Z22XE error codes without end, tachometer spins, …

Hello, have for some time the problem with my Omega B Facelift 2.2 BJ. 07/2001, that if I switch on the ignition of the tachometers like wild and the fuel pump is controlled accordingly in the same cycle, although the engine does not run… If I simultaneously read out the fault memory, then the following codes are stored one after the other: P0340 – camshaft sensor no signal (04) – Not available. P0335 – crankshaft sensor circuit open interruption (04) – Available P0100 – Air masses/quantity meter Signal too small (02) – Available P1550 – Electronic throttle valve controller Power management (04) – Not available. P1606 – Replace control unit (08) – Not available. P0219 – Engine Speed too large (00) – Available P1122 – Gas pedal sensor 2 Signal too low (02) – Not available. P0220 – Throttle valve potentiometer Sensor Circuit 2 Voltage low (02) – Not available. P1550 – Electronic throttle valve controller reduced Power (01) – Not available. Of course, the engine doesn’t start or after a long lynching only very hard… I checked the motor cable harness so far and could not detect anything defective. There are also some (few) times when it runs without problems, but then the whole thing comes up again, starting problems, error messages, … Does the motor control unit have a defect or the KWS or NWS??? Hang the two (KWS or NWS) so overhappens with the control unit, since ss these errors can occur even if the engine has not even been started yet??? Can anyone possibly help me???