Location of fuel pressure test valve - 1999 Pontiac Sunfire

The Schrader valve, also known as the fuel pressure test port, on a 2005 Honda CR-V is typically located on the fuel rail, which is the part of the fuel system that supplies fuel to the injectors. The fuel rail is typically located near the engine, and the Schrader valve is often located on the top or side of the rail, and it is usually a small valve that has a small, plastic cap covering it.

On the fuel rail that surrounds the plenum in the front. There should be a black screw on cap covering it.

fuel pressure needs to be checked with a pressure gauge attached to the fuel pressure testing port. it is a Schrader valve located on the fuel rail which is what supplies the injectors with fuel, it looks similar to a tire valve.

It's the tire valve looking connection, located on the top of the fuel rail, which is located on the driver's side of the engine, right on top. It may also have a cap screwed onto it, just like a tire air valve. That valve is used to purge the fuel line of pressure and also to test fuel pressure.

GO TO AUTO PARTS STORE BUY A FUEL PRESSURE GAUGE THAT CAN CHECK FUEL PRESSURE UP TO 100 PSI. LOCATE YOUR FUEL PRESSURE TEST PORT.LOOK FOR SCHRADER VALVE ON FUEL LINE NEXT TO EGR VALVE.PLACE A RAG NEAR THE SCHRADER VALVE AS YOU INSTALL FUEL PRESSURE GAUGE TO CATCH GAS SPILL AS YOU SCREW IN FUEL PRESSURE GAUGE HOSE FUEL PRESSURE 30 - 45 PSI WITH ENGINE RUNNING. THE ENGINE MUST BE OFF HOOK UP THE FUEL PRESSURE GAUGE.IF YOU HAVE TROUBLE THE FUEL PRESSURE GAUGE WILL HAVE INSTRUCTION HOW TO HOOK UP FUEL PRESURE GAUGE.BE CAREFUL CHECKING FUEL PRESSURE IS DANGEROUS JOB.DONT ALLOW NO MASSIVE FUEL SPRAYING WHEN HOOKING UP FUEL PRESSURE GAUGE YOU WILL GET CAR FIRE.

No you cannot, however there is a fuel pressure test port under the hood.
The test port is located on the fuel supply line near the fuel injectors. This test port has a schrader style valve that operates like a valve stem on a car tire. Depress the center of the valve to release the pressure. Do this only on a cold engine and with eye protection on. It will spray 10 onces at best.
Good luck

no there is not, but there is a pressure test port valve you can depress on the top of the engine in the supply line that goes over the tops of the fuel injectors, looks kinda like a tire valve, have a rag handy.

if you open up the hood and find your fuel rail you should see a little cap just like what is on your tire valve stems. take the cap off and push the little valve in the center agian just like the valve stem on your tire. be vary carefull as fuel will spray out of this. that is how to depressurize the fuel system

do it at the schrader valve pressure test port on the engine, the valve is located in the fuel supply rail to the injectors, looks like a tire valve.

very strange and rare problem. something is keping the injectors open instead of pulsing them. The command to ground the injectors comes from the PCM, Powertrain Control Module. It may be a good idea to pick up a used one from a salvage yard. car-part.com is a good place to look. You will need the info off your module to match up.
Do you have 2.0L SPI engine or 2.0L Zetec engine?
Look on the page with the * to find the lowest price part.
aso, check for shorted wire going to injectors
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Mechanical Returnless Fuel System The fuel system consists of a fuel tank with reservoir, fuel pump, fuel pressure regulator, fuel filter, fuel supply line, fuel rail, fuel rail pulse damper, fuel injectors, and schrader/pressure test point. Operation of the system is as follows (Figure 62):

1. The fuel delivery system is enabled during crank or running mode once the PCM receives a crankshaft position (CKP) sensor signal.

1. The fuel pump logic is defined in the fuel system control strategy and is executed by the PCM.

1. The PCM grounds the fuel pump relay, which provides VPWR to the fuel pump.

1. The inertia fuel shut-off (IFS) switch is used to de-energize the fuel delivery secondary circuit in the event of collision. The IFS switch is a safety device that should only be reset after a thorough inspection of the vehicle (following a collision).

1. A pressure test point valve (schrader valve) is located on the fuel rail. This is used to measure fuel injector supply pressure for diagnostic procedures and repairs. ON VEHICLES NOT EQUIPPED WITH A SCHRADER VALVE, USE ROTUNDA FUEL PRESSURE TEST KIT #134—R0087 OR EQUIVALENT.

1. Located on the fuel rail is a pulse damper. The pulse damper reduces fuel system noise caused by the pulsing of the fuel injectors. The vacuum port located on the damper is connected to manifold vacuum to avoid fuel spillage in the event the pulse damper diaphragm were to rupture (the pulse damper should not be confused with a fuel pressure regulator).

1. The fuel injector is a solenoid-operated valve that meters the fuel flow to each combustion cylinder. The fuel injector is opened and closed a constant number of times per crankshaft revolution. The amount of fuel is controlled by the length of time the fuel injector is held open. The injector is normally closed and is operated by 12 volt VPWR from the power relay. The ground signal is controlled by the PCM.

1. There are three filtering or screening devices in the fuel delivery system. The intake sock is a fine, nylon mesh screen mounted on the intake side of the fuel pump. There is a fuel filter screen located at the fuel rail side of the fuel injector. The fuel filter assembly is located between the fuel pump and the pressure test point/schrader valve.

1. The fuel pump (FP) module contains the fuel pump, fuel pressure regulator and the fuel sender assembly. The fuel pressure regulator is attached to the fuel pump in the fuel pump module located in the fuel tank. It regulates fuel pressure supplied to the fuel injectors. The fuel pressure regulator is a diaphragm-operated relief valve. Fuel pressure is established by a spring preload applied to the diaphragm. Excess fuel is bypassed through the regulator and returned to the fuel tank.
   
   
   
   Figure 62: Fuel System—Mechanical Returnless

Electronic Returnless Fuel System The fuel system consists of a fuel tank with reservoir, fuel pump, fuel rail pressure sensor, fuel filter, fuel supply line, engine fuel temperature sensor, fuel rail, fuel injectors, and schrader/pressure test point. Operation of the system is as follows (Figure 63) and (Figure 64):

1. The fuel delivery system is enabled during crank or running mode once the PCM receives a crankshaft position (CKP) sensor signal.

1. The fuel pump logic is defined in the fuel system control strategy and is executed by the PCM.

1. The PCM commands a duty cycle to the fuel pump driver module (FPDM).

1. The fuel pump driver module modulates the voltage to the fuel pump (FP) to achieve the proper fuel pressure. Voltage for the fuel pump is supplied by the power relay or FPDM power supply relay. (For additional information on FPDM operation, refer to PCM Outputs—Fuel Pump and PCM Inputs—FPM.)

1. The fuel rail pressure (FRP) sensor provides the PCM with the current fuel rail pressure. The PCM uses this information to vary the duty cycle output to the FPDM to compensate for varying loads.

1. The engine fuel temperature (EFT) sensor measures current fuel temperatures in the fuel rail. This information is used to vary the fuel pressure and avoid fuel system vaporization.

1. The fuel injector is a solenoid-operated valve that meters the fuel flow to each combustion cylinder. The fuel injector is opened and closed a constant number of times per crankshaft revolution. The amount of fuel is controlled by the length of time the fuel injector is held open. The injector is normally closed and is operated by 12 volt VPWR from the power relay. The ground signal is controlled by the PCM.

1. A pressure test point valve (schrader valve) is located on the fuel rail. This is used to measure fuel injector supply pressure for diagnostic procedures and repairs. ON VEHICLES NOT EQUIPPED WITH A SCHRADER VALVE, USE ROTUNDA FUEL PRESSURE TEST KIT #134—R0087 OR EQUIVALENT.

1. There are three filtering or screening devices in the fuel delivery system. The intake sock is a fine, nylon mesh screen mounted on the intake side of the fuel pump. There is a fuel filter screen located at the fuel rail side of the fuel injector. The fuel filter assembly is located between the fuel pump and the pressure test point/schrader valve.

1. The fuel pump (FP) module is a device that contains the fuel pump and the fuel sender assembly. The fuel pump is located inside the reservoir and supplies fuel through the fuel pump module manifold to the engine and the fuel pump module jet pump.

1. The inertia fuel shut-off (IFS) switch is used to de-energize the fuel delivery secondary circuit in the event of a collision. The IFS switch is a safety device that should only be reset after a thorough inspection of the vehicle (following a collision