Car is evil. Replaced ECU, everything tested out fine and pointed to ECU as the problem. Put the ECU in car starts great doesn't miss when idling. Next morning, it won't fire. It cranks and the tach needle bounces a bit but no fire. An hour later starts, starts again, starts again. Won't start. Checked with Mercedes, they said sounds like crank sensor-replaced it, same problems. The old crank sensor was 1/10th of a volt weaker-probably wasn't the cps anyhow.

I'm ready to torch the car, any other ideas?

 

check your pumps, fuel line , injectors and your actuator