Fuel injection engine Toyota Corolla 5 (E80)

EFi fuel injection system
Some models of the TOYOTA COROLLA car are equipped with an electronically controlled fuel injection system. The regulation process is carried out by the control unit. The control unit receives the necessary information...

Safety precautions when working with the injection system
Do not start the engine without a securely connected battery. Do not use quick chargers to start the engine. Do not disconnect the battery while the engine is running. When fast charging the battery, disconnect it from...

EFI Fuel Injection System Schematic
Schematic diagram of the EFI fuel injection system of the 1.3L engine Not shown in the picture: Control unit. Location in the passenger compartment behind the central console. Box with activated carbon and magnetic...

Fuel injection system components
Elements of the fuel injection system of engines with a working volume of 1.7 l and 1.8 l

Reading faults from computer memory
If a fault occurs in the fuel supply system, the signal lamp on the front panel lights up. At the same time, the control unit switches to the emergency program and continues recording faults. The fault can be read from...

Fuel injection system fault codes
code No The corresponding element of the system — There are no faults 11 No power to the control unit 12 No engine speed signal 13 There is no signal about the number of revolutions above 1500 rpm. 14 No ignition signal...

Idle speed check
Check conditions: The air filter must be installed, all hoses and pipes of the air intake system must be connected. Start and warm up the engine. The engine oil temperature should not be below 80°C. Turn off all...

Checking CO concentration
Note: For vehicles with a catalytic converter, the CO concentration is not regulated. Test conditions: Check the exhaust system. To do this, cover the end of the exhaust pipe with a rag. All pipe connections must remain...

Checking the cold start valve
The cold start valve is checked if the engine starts poorly and accelerates poorly when cold. Disconnect the injection plug connection. Connect an ohmmeter and measure the resistance of the cold start valve. The...

Checking the injection valve
The injection valve injects fuel in portions, i.e. for each revolution of the crankshaft, half of the fuel required to perform the working stroke is injected. The shape of the injected fuel has a cone and after each...

Removal and installation the injection valve
Removal Disconnect the ground (-) cable from the battery. Warning: This will erase the entries in the on-board computer memory, in particular the fault record and the radio receiver code. Before disconnecting the...

Checking the fuel pump
If the engine starts poorly or does not start at all, and also stalls while the car is moving, it is necessary to check the operation of the fuel pump. The fuel pump is located in the fuel tank. You can check its...

Checking fuel pressure
Fuel pressure is checked if the engine starts poorly or does not start at all, or if the engine runs unevenly or stalls. Test conditions: The battery must be fully charged (12 V). The fuel filter must be clean. Check...

Injection system faults
Before diagnosing the injection system, the following conditions must be met: Any errors in engine control during starting are excluded. When starting both a cold and a warm engine, it is necessary to press the gas...

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