Computerized Engine Controls: Notes

850 turbo models use a Motronic 4.3 injection and electronic ignition system. System uses a single Electronic Control Module (ECM) that receives input from engine monitoring sensors. These sensors include Camshaft Position (CMP) sensor, Engine Coolant Temperature (ECT) sensor, Heated Oxygen (HO2S) sensor, Knock Sensor (KS), Mass Airflow (MAF) sensor, A/C pressure sensor, EGR temperature sensor (Motronic 4.3), acceleration sensor, RPM sensor, timing pick-up, and Throttle Position (TP) sensor. ECM uses these input signals to control air/fuel mixture for emission control, fuel economy and good driveability.