Engine management block diagram (Engine management system - V8) (page 2 of 2)

1 Engine control module 2 Crankshaft speed and position sensor 3 Camshaft position sensor 4 Engine coolant temperature sensor 5 Mass air flow/ inlet air temperature sensor 6 Throttle position sensor 7 Heated oxygen sensors 8 Fuel injectors 9 Idle air control valve 10 Fuel pump relay 11 EVAP canister 12 EVAP canister vent valve 13 EVAP canister purge valve 14 Fuel tank pressure sensor 15 Ignition coils 16 Knock sensor 17 Spark plugs 18 High/ Low ratio switch 19 Malfunction indication lamp 20 Diagnostic connector 21 Air temperature control clutch relay 22 Air temperature control cooling fan relay 23 ATC ECU 24 CAN link to EAT 25 SLABS ECU 26 BCU 27 Instrument cluster 28 Thermostat monitoring sensor (where fitted)