The 1990 XJS fuel injection wiring diagram is a complex and essential part of the car's engine. It is responsible for sending the correct amount of fuel to the engine at the correct time, and it is critical for the car's performance. If the wiring diagram is damaged or incorrect, it can cause the engine to run poorly or even fail to start.
This article will provide a detailed overview of the 1990 XJS fuel injection wiring diagram. It will cover the different components of the system, how they work together, and how to troubleshoot problems. By understanding the fuel injection wiring diagram, you can keep your XJS running smoothly and efficiently.
The 1990 XJS fuel injection system is a closed loop system. This means that the amount of fuel injected into the engine is controlled by the oxygen sensor. The oxygen sensor measures the amount of oxygen in the exhaust gas, and this information is used by the ECU to adjust the fuel injector pulse width. The pulse width is the amount of time that the fuel injector is open, and it is measured in milliseconds.
The ECU also receives input from the throttle position sensor, the coolant temperature sensor, and the MAP sensor. The throttle position sensor tells the ECU how far the throttle is open, the coolant temperature sensor tells the ECU how hot the engine is, and the MAP sensor tells the ECU how much air is entering the engine.
The ECU uses all of this information to calculate the correct amount of fuel to inject into the engine. The fuel is injected into the engine through the fuel injectors, which are located in the intake manifold. The fuel injectors are controlled by the ECU, and they open and close to inject the correct amount of fuel into the engine.
The 1990 XJS fuel injection wiring diagram is a critical part of the car's engine. It is responsible for sending the correct amount of fuel to the engine at the correct time, and it is essential for the car's performance. If the wiring diagram is damaged or incorrect, it can cause the engine to run poorly or even fail to start.
By understanding the 1990 XJS fuel injection wiring diagram, you can keep your XJS running smoothly and efficiently.
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