The BMW throttle system is disabled.

The first reason is the problem of eccentric shaft motor.

The function of the eccentric shaft is to adjust the camshaft, so that the best intake valve lift can be achieved under each working condition. When the eccentric shaft motor fails, it will affect the electronic valve.

Solution: Replace the eccentric shaft motor.

The second reason is the engine control unit problem.

Engine control unit is an important part of the engine control system, which can provide the engine with the best air-fuel ratio mixture and the best ignition time according to the different working conditions of the engine, so that the engine is always in the best working state. When the engine control unit fails, the electronic valve adjustment will also fail.

Solution: Replace the engine control unit.