System Description and View
Engine Management SystemThe engine management system is controlled by the Engine Control Module (ECM) (1), which receives signals from the various EMS sensors, compares them to the required standards and then modifies the fuel and ignition settings to maintain an optimum, stoichiometric, fuel and air mixture under all conditions. Sensor information is supplied to the ECM as inputs (2), and control commands are issued through the ECM outputs (3).
NOTE: Reference numbers eg (1) are shown in figure bellow.
Engine Management System:
1. Engine Control Module (ECM)
2. Engine Control Module Inputs
3. Engine Control Module Outputs
4. Mass Air Flow Sensor (MAFS)
5. Intake Air Temperature Sensor (IATS)
6. Idle Speed Control Valve (ISCV)
7. Engine Coolant Temperature Sensor (ECTS)
8. Fuel Pump
9. Fuel Rail
10. Fuel Pressure Regulator
11. Fuel Injector (FI)
12. Spark Plugs with Integral Coils
13. Catalytic Convertor
14. Heated Oxygen Sensors and Heaters (HO2S)
15. Throttle Position Sensor (TPS)
16. Exhaust Gas Recirculation (EGR) Valve
17. EGR Function Sensor
18. Knock Sensor (KS)
19. Crankshaft Position Sensor (CKP)
20. Engine Position Sensor (CMP)
21. Secondary Air Injection System (AIR)
22. Mechanical Check Valve
23. Fuel Tank
24. Activated Charcoal Canister
25. Canister Purge Valve
26. Fuel Level Sensor
27. Park Neutral Switch
28. Security and Locking Control Module
29. Ignition On
30. Instrument Pack (Road Speed)
31. Trip Computer
32. Diagnostic MIL Lamp
33. Data Link Connector (DLC)
34. Transmission Control Module (Torque Control)
35. Inertia Switch