|
|
ENGINE CONTROL SYSTEM EC-599 [VG33E] C D E F G H I J K L M A EC System Chart UBS00DEN *1: This sensor is not used to control the engine system. They are used only for the on board diagnosis. Multiport Fuel Injection (MFI) System UBS00DEO INPUT/OUTPUT SIGNAL CHART *: This sensor is not used to control the engine system under normal conditions. SYSTEM DESCRIPTION The amount of fuel injected from the fuel injector is determined by the ECM. The ECM controls the length of Input (Sensor) ECM Function Output (Actuator) ● Camshaft position sensor ● Mass air flow sensor ● Engine coolant temperature sensor ● Heated oxygen sensor 1 ● Ignition switch ● Throttle position sensor ● Closed throttle position switch * 4 ● Park/neutral position (PNP) switch ● Air conditioner switch ● Knock sensor ● Intake air temperature sensor ● EVAP control system pressure sensor * 1 ● Battery voltage ● Power steering oil pressure switch ● Vehicle speed sensor ● Fuel tank temperature sensor * 1 ● Crankshaft position sensor (OBD) * 1 ● Heated oxygen sensor 2 * 3 ● TCM (Transmission control module) * 2 ● Ambient air temperature switch Fuel injection & mixture ratio control Fuel injector Distributor ignition system Power transistor Idle air control system IACV-AAC valve and IACV-FICD Fuel pump control Fuel pump relay On board diagnostic system MIL (On the instrument panel) EGR control EGRC-solenoid valve Heated oxygen sensor 1 heater control Heated oxygen sensor 1 heater Heated oxygen sensor 2 heater control Heated oxygen sensor 2 heater EVAP canister purge flow control EVAP canister purge volume con- Air conditioning cut control Air conditioner relay ON BOARD DIAGNOSIS for EVAP system ● EVAP canister vent control ● Vacuum cut valve bypass valve Sensor Input Signal to ECM ECM func- tion Actuator Camshaft position sensor Engine speed and piston position Fuel injec- Fuel injector Mass air flow sensor Amount of intake air Engine coolant temperature sensor Engine coolant temperature Heated oxygen sensor 1 Density of oxygen in exhaust gas Throttle position sensor Throttle position Park/neutral position (PNP) switch Gear position Vehicle speed sensor Vehicle speed Ignition switch Start signal Air conditioner switch Air conditioner operation Knock sensor Engine knocking condition Battery Battery voltage Power steering oil pressure switch Power steering operation Heated oxygen sensor 2* Density of oxygen in exhaust gas |