System configuration of common-rail EFI-diesel
1. Sensors
2. Actuator
3. ECU and other parts
Layout of components (1CD-FTV E/G)
1. Sensor
(1) Air flow meter
Detects the intake air volume.
(2) Read more System Configuration of Common-rail EFI-diesel
Yearly Archives: 2010
System Configuration of Conventional EFI-diesel
System configuration of conventional
1. Sensors
2. Actuator
3. ECU and Others
Layout of Components (1HD-FTE E/G)
1. Sensors
(1) Accelerator pedal position sensor
Detects the accelerator opening Read more System Configuration of Conventional EFI-diesel
What is EFI-diesel?
The ECU detects the operating conditions of the engine based on the signals from various sensors. Based on this information, the ECU electrically controls the fuel injection volume and injection Read more What is EFI-diesel?
Fail-safe and Back-up Function 2 of 2
Back-up Function
The back-up function switches over to fixed signal control by the back-up IC to permit driving in cases when a malfunction occurs in the microcomputer inside the engine ECU. The back-up Read more Fail-safe and Back-up Function 2 of 2
Fail-safe and Back-up Function 1 of 2
Fail-safe Function
Purpose of the fail-safe function
If the ECU detects a malfunction in any of the input signal systems, the fail-safe function controls the engine using standard values contained in Read more Fail-safe and Back-up Function 1 of 2
DTC (Diagnostic Trouble Codes) DTC Output
DTCs are output as either 5-digit or 2-digit codes. In the Repair Manual, the detection item, detecting condition and trouble area are included for each DTC, so refer to the Repair Manual when troubleshooting.
1. Read more DTC (Diagnostic Trouble Codes) DTC Output
Gasoline Engine Control System Diagnosis
The engine ECU possesses an OBD (On-Board Diagnostic) function which constantly monitors each sensor and actuator. If it detects a malfunction, the malfunction is recorded as a DTC (Diagnostic Trouble Read more Gasoline Engine Control System Diagnosis
Gasoline Engine Air Intake Control System
The air intake control system is divided into two air cleaner inlets, and one of these inlets is provided with a valve, which is opened and closed to attain suitable air intake efficiency in accordance Read more Gasoline Engine Air Intake Control System
Evaporative Emission Control System
The evaporative emission control system prevents evaporated fuel from the fuel tank from being released into the atmosphere by having the evaporative emissions be temporarily absorbed by a charcoal canister. Read more Evaporative Emission Control System
AI (Air Injection) Control System/AS (Air Suction) Control System
The AI control system/AS control system is a system that feeds air into the exhaust manifold to recombust the uncombusted gas in the exhaust to lower HC and CO emissions. The difference between these two Read more AI (Air Injection) Control System/AS (Air Suction) Control System