The M20 never came with a camshaft position sensor from the factory. The MRT Engineering Cam Sensor Plate adds cam sensing capability to your M20 for use with any compatible standalone ECU.
Compatible with all M50 / M52 / M54-style camshaft sensors (M50NV VR-type, M50 Vanos Hall-type, M52 Siemens, M54 Hall-type)