Electric Throttle
WARNING: This page is about a different car, the 2018 Land Rover Range Rover, 2017 Land Rover Range Rover, and 2016 Land Rover Range Rover. However, it is still accessible from the selected car via links, so may be relevant.
| ITEM | DESCRIPTION |
|---|---|
| 1 | Throttle actuator |
| 2 | Right Exhaust Gas Recirculation (EGR) pipe connection |
| 3 | Right intake manifold connection |
| 4 | Manifold Absolute Pressure (MAP) sensor |
| 5 | Left intake manifold connection |
| 6 | Left Exhaust Gas Recirculation (EGR) pipe connection - if equipped |
| 7 | Air intake |
The electric throttle is installed at the front of the engine, between the cylinder heads.
There is no mechanical linkage between the accelerator pedal and the butterfly valve with electronic throttle control. Instead, the position of the butterfly valve is fully controlled by the Powertrain Control Module (PCM) via an Direct Current (DC) electric motor. The Throttle Position Sensor (TPS) is continually read and then the PCM makes appropriate adjustments to reach the desired amount of engine power. This method allows a precisely controlled amount of air into the intake manifold.
For additional information, refer to: INTAKE AIR DISTRIBUTION AND FILTERING
The PCM has five connections with the electric throttle motor:
- A ground and two 12 V feeds to operate the motor in each direction to open or close the throttle plate
- A 5 V reference connection and a signal connection with the TPS in the motor, for closed loop control.