Sensors
Sensors are used by the ECU to determines the engines position and fuel requirements.
The critical "Fuel" sensors include:
- Manifold Pressure Sensor
- Throttle Position Sensor
- Coolant & Inlet Air Temperature Sensors
- O2/Lambda Feedback (Optional)
Also for the engines position tracking the following sensors are required:
- Crank Position Sensor
- Cam Position Sensor(s) (Optional for fully sequential and VVT operation)
Some example wiring guides for sensors are shown in the relevant wiring guides for ME100/ME221 and ME442 Wire-Ins, such as the diagram below.

Typical assignments for the above wiring:
