Table of Contents
What is a fuel injection wiring harness?
The wiring harness holds the wires of the fuel injector. Though wiring harnesses are high-quality components that take a long time to wear out, they’ll get damaged eventually. When that happens, you have to be ready to replace the wiring harness of your vehicle right away.
What device is responsible for activating fuel injectors?
In simple terms, a fuel injector is a solenoid valve whose activation is controlled by the Engine Control Unit (ECU). As mentioned earlier, fuel injectors’ main job is delivering the necessary amount of fuel to the engine, and additionally, they should also ensure homogeneous atomization of the air-fuel mixture.
How do you test a fuel injector wiring harness?
Fuel Injector Resistance Testing
- Turn the multimeter to “Ohms.”
- Place the multimeter leads into the fuel injector plug terminal.
- Read the Ohms, or resistance, produced by the fuel injector.
- Test all the fuel injector Ohm readings.
- Replace the injector if the Ohm value is significantly different than other injectors.
How is electronic fuel injection EFI controlled?
It uses engine RPM and signals from different sensors to meter the fuel. It does this by telling the fuel injectors when and how long to fire. The ECU often controls other functions like the fuel pump and ignition timing.
Are there any electrical connectors for a Toyota?
EFI Engine Loom Connectors to suit Toyota Vehicles. Are you searching for high-quality Toyota electrical connectors? Then you don’t have to look further than the range of products available here at EFI Hardware.
What kind of ground does a Toyota EFI use?
No electrical circuit will function normally without a dependable ground. Toyota EFI systems use a redundant ground system which significantly reduces the chance of ground problems; however, this circuit should never be overlooked when troubleshooting ECU related systems. The E2 circuit serves as a signal return or sensor ground.
What are the grounds for the fuel injector driver?
Circuits E01 and E02 serve as grounds for the fuel injector driver circuits. To provide a redundant ground for the ECU, these two grounds are tied to the E1 circuit through a diode.