1MZ-FE engine management system configuration Pic. 2.204. Configuration diagram of the 1MZ-FE engine management system of the new Camry (part 1) Pic. 2.204b. Configuration diagram of the 1MZ-FE engine management system of the new Camry (part 2) Pic. 2.205. Diagram...
The main elements of the engine management system Pic. 2.206. Location of the main elements of the control system on the car: 1 – DLC3 sensor; 2 – air flow sensor; 3 - electronic engine control unit; 4-VSV (for intake control valve); 5 - fuel pump; 6 - temperature...
Camshaft position sensor Pic. 2.208. Camshaft position sensor: 1 – synchronization rotor; 2 - camshaft position sensor; 3 - synchronization rotor (720°CA) Camshaft position sensor (pic. 2.208) mounted on the left cylinder head. To determine the...
Fuel pedal position sensor Pic. 2.209. Fuel pedal position sensor: 1 - sensor This sensor (pic. 2.209) converts the angle of rotation of the fuel control pedal into electrical signals with two different characteristics and transmits them to the...
EFI system (Electronic fuel injection system) The L-type electronically controlled fuel injection system directly senses the intake air mass using a hot-wire type air mass sensor. Adopts independent injection system (in which fuel is injected into each cylinder...
ETCS-i system (Intelligent Electric Throttle Control System) Pic. 2.211. Diagram of the ETCS-i system: 1 - throttle valve; 2 - throttle position sensor; 3 – sensor of position of a pedal of management of giving of fuel; 4 - throttle actuator motor; 5 - air flow sensor; 6 -...
ACIS (Acoustic control of the intake system) Pic. 2.212. Diagram of the ACIS system: 1 - actuator; 2 - control valve of the variable valve timing system; 3 - to the smoothing receiver; 4 - vacuum valve; 5 - vacuum reservoir; 6 - electronic engine control unit; 7 -...
Air intake control valve Pic. 2.213. Intake air control valve: 1 – the control valve of air of an inlet; 2 - actuator Intake air control valves (pic. 2.213), which are installed in the receiver, open and close in two stages to change the...
VSV (vacuum valve) Pic. 2.214. VSV (vacuum valve): 1 - atmosphere; 2 - on the actuator; 3 - from the vacuum reservoir Valve (pic. 2.214) controls the vacuum that is supplied to the actuator on a signal (ACIS) electronic engine control...
Air intake control system The air filter inlet is divided into two chambers, the air intake control valve and the actuator are installed in one of the chambers. The result was a reduction in intake noise in the low rpm range and an increase in...
Diagnostics of the engine management system At the time of detection of a malfunction of the system, the electronic engine control unit conducts diagnostics and stores the error. In addition, the check engine warning light in the instrument cluster comes on or...
Reliability management system If the electronic engine control unit detects a malfunction, it stops the engine or controls the engine according to the data available in the memory (tab. 2.30). Table 2.30. Innovations applied in the operation of the...
Pedal Position Sensor Failure Compensation The fuel pedal position sensor includes two (main and additional) sensor circuits. In the event of a malfunction in any of the sensor circuits, the engine electronic control unit detects a difference in signal voltages...
Throttle position sensor failure compensation The throttle position sensor includes two (main additional) sensor circuits. In the event of a malfunction in any of the sensor circuits, the engine electronic control unit detects a difference in signal voltages in...