Download How To Check Fuel Pressure Without Gauge
Background. Follow the fuel line to the throttle body or carburetor. Finding the fuel pressure regulator is not that difficult.
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Check the video at the start of this section so that you have an idea how to do a maximum pressure test. The only way to measure it is to disconnect the fuel line from the fuel rail and insert an adapter hose in between the rail and fuel line, the adapter will have the required port for the fuel pressure gauge. This fuel pressure gauge result let's you know that the fuel pump is working and delivering enough fuel to the fuel injectors.
That is the pump prime wire.
Or feed to pump so you can find out if its a wiring /connector issue or ground like in the trunk driver side area. Replacing the vacuum line an easy way to test for an fpr leak in the vacuum side is to replace the vacuum line going into the fpr with a length of clear tubing. I am a specialist and certified automotive mechanics (both heavy commercial and private cars). Check to make sure that the proper 6 or 12 volt power is present at the ignition side of the dash gauge.
