How does the fuel injection system work in a jeep?
When injector solenoid is energized, armature and plunger move upward against spring. Check ball above injector nozzle moves off seat and opens small orifice at end of injector. Fuel supplied to injector is forced around ball and through orifice, resulting in fine spray of fuel.
Where is the fuel injection injector located?
The Throttle Body Injection (TBI) system is a single injector system that introduces fuel into throttle body from above throttle plate. Fuel injector, located within throttle body, is controlled by the Electronic Control Unit (ECU).
Is the fuel regulator part of the throttle body?
Fuel pressure regulator is integral part of throttle body. Pressure regulator has a spring chamber that is vented to same pressure as tip of injector. Because differential pressure between injector nozzle and spring chamber is same, only the length of time that injector is energized controls volume of fuel injected.
Where is the idle switch on a jeep?
TPS is mounted on throttle body assembly. WOT switch provides an input signal to ECU when engine is at wide open throttle. The ECU enriches air/fuel mixture. The WOT switch is located on the side of throttle body. Idle switch is integral with ISA motor and provides voltage signal to ECU.
How does fuel injection work on a Jeep Wrangler?
Enter the 1991 YJ. Though it is almost identical to earlier YJ Wranglers the engine were instead fed with fuel injection. Fuel injection works much the same as a carburetor. Its design is to combine fuel and air and deliver it to the engine.
Is the YJ Wrangler the same as a carburetor?
But carbs do have some ailments. As the 80s found its place in the history books, so did the carburetor (on modern production vehicles at least.) Enter the 1991 YJ. Though it is almost identical to earlier YJ Wranglers the engine were instead fed with fuel injection. Fuel injection works much the same as a carburetor.
Can you upgrade the fuel delivery system on a Jeep Cherokee?
With common modifications, such as heavy-duty bumpers, lifts and/or large tires, it is very easy to push your factory fuel delivery system to its limits. Upgrading the fuel systems allows your Jeep to properly recalibrate fuel delivery to keep you on the trail instead of being stuck on the side of the road.
Why does the Jeep Wrangler not burn as much fuel?
The JK’s engine doesn’t need to burn as much fuel if it’s keeping a consistent speed as it does to accelerate. So if you’re keeping a steady speed this feature basically shuts down two cylinders in your engine, providing better fuel economy.