Throttle body injection pdf download

There are instances where the vacuum leak is coming from the adapter plate used to attach the throttle body to the manifold. Beginning in 1985, some engines were available with a throttle body fuel injection system. Vacuum leaks are the leading cause of installation issues with your fuel injection system. Do not loosen or tighten the white painted bolts and screws of. Throttle body injection chevy gmc tbi trucks gm tbi. I explain how the throttle body injection system works on my 1994 chevy truck. Each tbi assembly is coated with a long lasting aluminum oxide finish. The accelerator pedal regulates the rate of air flow through the intake by opening and closing the throttle valve. Caution to reduce the chance of personal injury andor property damage, the following instructions must be carefully observed. A coldstart injector is installed in the intake to. In engine rotation speed over idol speed, fuel injection is stopped at idle throttle position.

Unfollow throttle body injection to stop getting updates on your ebay feed. Throttle position tbi22017087090, 17087162, 17111759 5002000 sensor side 199087 4. Prevent dirt and debris from entering the throttle bore, fuel tube and return tube, clean them using compressed air. All tbi assemblies are flow bench tested, calibrated and idle adjusted which makes for easy installation. Check all sources of potential vacuum leaks including components not related to the fuel injection system. Experimental works comprised one throttle opening position with various dynamometer loads for two angles. All throttle body injected vehicles are controlled by a computer which regulates idle speeds and supplies the correct amount of fuel during all engine operating conditions. Throttlebody injection definition, a fuelinjection system in which an injector throttlebody injector delivers fuel to a central location within the intake manifold of the engine.

Pdf influence of fuel injector position of portfuel injection retrofit. Do not disassemble in a way other than shown in this manual. If you have any questions about this system or instruction manual, please contuct us. Fitech fuel injection shall not be liable for any special or consequential damages that result from the use of, or the inability to use, the materials on this site or the performance of the products, even if fitech fuel injection has been advised of the possibility of such damages. Pdf advanced engine performance diagnosis, fuel injection system, computer. At first, carburetors were replaced with throttle body fuel injection systems, also known. Pdf automobile engineering report on electronic fuel. Fast fuel injection systems throttle body injection. Pdf sensors system,advanced fuel injection system,computer. Online shopping for throttle body injection kits fuel injection from a great selection at automotive store. If yes can you tell me anything i need to be aware of. It may cause incorrect throttle and idle valve synchronization.

Throttle body injection system construction training manuals. It is designed to utilize the vehicle on board computer ecm and all the gm preferred relays, sensors and other accessories to operate the fuel injection and ignition as originally designed by the factory. Electronic fuel injection system electronic control unit instruction. Our oem throttle body injection tbi assemblies are complete and ready to install. Engine pictured may include optional and nonroush equipment. I bought a carburetor to throttle body injection conversion kit. Throttle body fuel injection initial calibration of the tbi disclaimer the author of this presentation assumes no responsibility for information provided causing the owner to modify or alter their motorhome which shall result in problems or mishaps. Carburetor to throttle body injection ford thunderbird.