To measure the fuel system pressure
A bad fuel injector (poppet valve).
You have a fuel injector for each cylinder attached to fuel rail on top of engine. These simply open/close allowing fuel in.
The Injector nozzle consists of a needle valve and a series of fine orifices in the nozzle tip. Its task is to inject fuel in an atomised spray pattern and distribute it into the combustion space.
MFI is an acronym for Multiport Fuel Injection. An MFI Fuel System is a fuel injection system that uses one injector per cylinder, mounted on the engine to spray fuel near the intake valve are or the combustion chamber.
its the needle valve inside the injector opening and closing
you can see the valve on the fuel injector. it is on the passenger side of the car and to the front of the injector.
Yes
This system does not have a "Fuel mix valve" it should have one single injector that sets above a venturi (throttle body) that is controlled by the ECM (computer).
check valve is location is on the brake boster vacuum hope this helps i just put one on the only check valve i know is for the emissions vapor purge system. check valve is on the top of the fuel tank.this will give you a check engine light with a evap failure code. or are you looking for the valve to check fuel pressure? that is on the fuel injector rail.more info will give more help
Assuming we are talking about an Electronic Fuel Injector, in an EFI system the fuel injector opens and sprays the pressurised fuel into the engine when signaled by an Engine Control Module (ECM).
under hood, on fuel rail which is connected to each fuel injector there should be a valve that looks like a tire valve. That is the shrader valve, test fuel pressure there.
There is a blockage somewhere.