Recently I got these problems on a computer engine. The engine stammers when I stop at a traffic light. Almost shut down.
I replace a camshaft Sensor and also a pair of Camshaft Solenoid .
Still, the engine registers this problem. But the engine drive a little better for now.

Does anyone have an idea what could be the problem?

 

Make sure the wires and plug to the camshaft sensor are in good condition. It may a broken or loose wire in the harness somewhere.