what does the fuel injectors get controlled by
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What actually controls fuel injectors on a car, the COMPUTER (ECM) or Sensors on the Throttle body like? The ECU aka computer controls the fuel injectors. It will ground (or was it positive, forgot) the injectors really quick. It is so quick that there is a special light called a noid light used to connect to the fuel injector connector to test this signal.
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All About the Carburetor Delivering gasoline to the carburetor Gasoline is delivered to the carburetor by the fuel pump and is stored in the fuel bowl. To keep this level of fuel stored in the bowl constant under all conditions a float system is used.A float operated needle valve and seat at the fuel inlet is used to control the fuel level in the bowl.If the fuel level drops below a certain level the float lowers and opens the valve letting more fuel in. When the float rises it pushes the inlet valve against the seat and shuts off the flow of fuel into the bowl.asoline is delivered to the carburetor by the fuel pump and is stored in the fuel bowl. To keep this level of fuel stored in the bowl constant under all conditions a float system is used.
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Fuel Injection System Components Abstract: The fuel injection system can be divided into low-pressure and high-pressure sides. The low-pressure components include the fuel tank, fuel supply pump and fuel filter. The high-pressure side components include a high pressure pump, accumulator, fuel injector and fuel injector nozzle.
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- The carburetor has two swiveling valves above and below the venturi. At the top, there's a valve called the choke that regulates how much air can flow in. If the choke is closed, less air flows down through the pipe and the venturi sucks in more fuel, so the engine gets a fuel-rich mixture.
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Purge valve: how it works, symptoms, problems, testing The purge valve precisely controls the amount of fuel vapor that is purged from the charcoal canister. In modern cars, the purge valve is an electrically-operated solenoid, that is controlled by the engine computer. When the engine is off, the purge valve is closed. When the engine is running and fully warmed up, the engine computer gradually opens the purge valve to allow some amount of fuel vapor to be moved from the charcoal canister to be burned in the engine. The purge flow is monitored by a number of sensors.
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Automotive         Fuel Injector Testing Procedures With positive injector trigger, the positive side is the one being triggered by the ECM. The component of the ECM that triggers the injector is called the driver. Injector drivers fall into two categories, the saturation and the peak-and-hold type driver.
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- What does the inertia switch reset button do?   The intertia switch is designed to kill the power to the fuel pump in the event of an accident in case a fuel line is ruptured in order to keep from pumping fuel all ove…r the site.
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- (fits all 1994 - 2003). The IPR Valve on your Powerstroke is responsible for controlling the pressure in the high-pressure oil system which in turn operates the fuel injectors. The IPR (injection pressure regulator) is located on the high pressure oil pump at the front of the engine's valley.
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How many turns out to adjust my idle air mixture screw.? 1 On some carbs, like Mikuni there is an air jet too. 2  In conjunction with the idle jet there is an idle jet air screw. 3  This screw leans or richens the fuel mixture for a smooth idle and on up to one quarter throttle.t sets in the center of the carb, right over the Main Jet. Jet Needle. This is the needle that rides in the throttle slide and goes into the needle jet. This Jet Needle controls the fuel mixture from 20% to 80% open throttle.
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- In a petrol/gasoline internal combustion engine, the throttle is a valve that directly adjusts the amount of air entering the engine, indirectly controlling the charge (fuel + air) burned on each cycle due to the fuel-injector or carburetor maintaining a relatively constant fuel/air ratio.
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How does an FPR work? A Turbosmart FPR works by bleeding off a portion of the fuel flow to the injectors from the fuel pump to control the fuel pressure. Fuel is pumped from the fuel tank to the fuel rail by the fuel pump.
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- Injector 2 Circuit Fault. Circuit Features. 1  In this circuit the Engine Control Module (ECM) has four individual injector driver circuits, each of which regulates an injector. 2  The injector is activated each time the ECM grounds a driver. 3  The ECM regulates the current in each driver circuit.
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Fuel Injector Replacement Service Your fuel injectors transfer gas from the gas tank into the engine cylinders. Gas enters the fuel injectors in a liquid form, and is converted into a mist, which is then sprayed into the cylinder so that it can burn quickly and efficiently.our fuel injectors transfer gas from the gas tank into the engine cylinders. Gas enters the fuel injectors in a liquid form, and is converted into a mist, which is then sprayed into the cylinder so that it can burn quickly and efficiently.
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- Injection Pressure Regulator (IPR) General Information: A Powerstroke engine utilizes an electromagnetic valve to regulate the high pressure oil pressure on the engine to tailor the injection characteristics of the injectors. This valve is called the Injection Pressure Regulator or IPR.
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DIY Fuel Injector Cleaning Fuel injector Atomization and Distribution. During the DIY fuel injector cleaning process the spray pattern which indicates atomization and distribution cannot be verified. The spray pattern of a fuel injector is very important the performance of the engine.It can also be determine the amount of Hydrocarbon [HC] and Carbon Monoxide [CO] that will be emitted.. Based on YouTube videos and some internet sites the DIY Fuel Injector Cleaning process can be accomplished fairly simple and easy. An on-off switch is connected to a battery. The other side of this switch is then connected to the fuel injector to be cleaned with a set of wires. The injector is opened and closed by pressing the switch.
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How do you get a flooded FUEL INJECTED car started... And when they get too wet, they can't make sparks and the car won't start. That's flooding.. RAY: When a carbureted car is flooded, you floor the gas pedal while you turn the key. That opens the throttle (and, to some extent, the choke), and sends in as much air as possible.TOM: On a fuel injected car, you also floor the gas pedal while turning the key.ut what you're doing is sending a message to the computer (which controls the fuel-air mixture). When you press the gas pedal to the floor in the crank mode (when the engine is trying to start), you let the computer know that the engine is flooded, and the computer automatically cuts the fuel flow in half.
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Fuel Injection System Components In addition to keeping solid particles out of the fuel supply and injection equipment, water in fuel must also be prevented from entering critical fuel injection system components. Free water can damage fuel lubricated components in the fuel injection system.
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- When the throttle is opened from the idling position, the throttle increases the amount of air in the mixing chamber and the needle valve begins to open, this proportionally increases the amount of petrol. Tuning: In this position the air is controlled by the throttle cutaway.hrottle Setting, Full Closed: The carburetor proportions and atomizes the correct amount of petrol with the air that is drawn in by the engine. With the throttle slide in this position, the engine is idling, the needle valve is shut and the pilot jet and air adjusting screw control the mixture.
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Carburetor vs. Fuel Injection: Understanding the Pros and Cons Engine Performance. The carburetor and fuel injection performance is mainly due to the amount of air and gasoline that can enter into the engine cylinders. The cylinders contain the pistons and combustion chambers where energy is released from the combustion of gasoline.
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- Envoy throttle body is like the carburetor on earlier cars except it does not supply fuel to the engine. Fuel is delivered by the fuel injectors at each cylinder. It's only fu … nction is to supply a regulated amount of air to the engine with a motor driven flapper valve.
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- Also if this vacuum line is worn out or disconnected it will cause the fuel pressure to be too high, and a rich mixture will be the result. When a fuel injector is turned off, it should not allow fuel to flow into the intake. A fuel pressure test can help you find leaking fuel injectors. plugged air filter, a fuel pressure regulator that is leaking, leaking injectors, fuel pressure that is too high, or a fuel control sensor sending the wrong information to the PCM can cause a rich air/fuel ratio.
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- Envoy throttle body is like the carburetor on earlier cars except it does not supply fuel to the engine. Fuel is delivered by the fuel injectors at each cylinder. It's only fu…nction is to supply a regulated amount of air to the engine with a motor driven flapper valve.
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- The fuel injection system is composed of the fuel inlet line, the injection rail, the electrical connector and the fuel injector. A pintle cap sits on the bottom of the injector inside the cylinder. Pintle caps can become cracked or deformed and sometimes must be replaced. Replacing the pintle cap on the fuel injector requires the dismantling of the fuel rail system to reach the part.
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All About the Carburetor Gasoline is delivered to the carburetor by the fuel pump and is stored in the fuel bowl. To keep this level of fuel stored in the bowl constant under all conditions a float system is used. A float operated needle valve and seat at the fuel inlet is used to control the fuel level in the bowl.
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- Throttle Body Injector. Very simply the TBI replaces the carburetor and consists of one or more solenoid valve injectors which inject fuel when pulsed by a signal from the Electronic Control Module (ECM) a rate which assures maintenance of the correct air/fuel ratio.