Electronic Throttle Actuator: Description and Operation

GF30.20-P-2020P Throttle Valve Actuator, Component Description
ENGINE 642.886 in MODEL 463.306 /336 /346 up to 31.5.12
- as of Model Year 2011
/YoM 10
ENGINE 642 in MODEL 164.8, 251.1, 164.1, 221.0, 251.0, 203.2 /0, 221.1 up to Model Year 2008
/YoM 07
ENGINE 642 in MODEL 211.0, 209.4, 211.6 /2, 219.3, 209.3
ENGINE 642.970 in MODEL 463.303 /340 /341 up to 31.5.12





M16/6 Throttle valve actuator

Location
The throttle valve actuator is located on the engine at the right front.

Task
The throttle valve actuator regulates the fresh air quantity and mixes the recirculated exhaust with fresh air.

Function
The throttle valve actuator is actuated by the CDI control unit (N3/9) over a pulse width modulation signal and controls the fresh air quantity via the installed throttle valve
Through connection of the exhaust gas recirculation with the mixing throttle, the suctioned fresh air is mixed with the recirculated exhaust.