Thanks for the first tips.
Vaccuum tube is ok. No air leaks found. As the M16 has a 14CU control unit there is no possibility to read out errors. Maybe the idea is right to check the sensors.
I can measure the throttle valve sensor. I have researched the target values.
Is there a knock sensor? If so, where is it mounted?
How can I measure the temperature sensor?
Can I measure the speed sensor?
I suspect that all these sensors have an influence on the control unit and can cause problems when the engine starts.
thank you
