Bozhidar

Engine N52B30

On a cold start, the engine starts shaking. When applying gas in place, the shaking stops and after releasing the gas pedal it starts shaking again. After walking even 5 meters the shaking stops. Also, every 50-100 kilometers the check engine lights up, it says errors 2ded power management, closed-circuit protection and 2c7e. we changed the lambda probe for which it gives an error, but after 400 kilometers it gave an error again. The problem appeared after changing the timing chain and unclogging the drainage channels, which caused flooding in the passenger compartment. Anyone have any idea what it could be?