It is round and has a vacuum hose attached to the top.) With the hose off, examine for any fuel emerging from the vacuum hose becoming. Whether there is any memo of fuel at this speck, the diaphragm is broken and the fuel vigour regulator must be replaced.2.
Instructions
1. Lift the hood and originate the engine. Pull the hose off the fuel coercion regulator diaphragm. (The fuel impact regulator is located on the corresponding edge of the fuel lambaste from the fuel inlet column.A fuel pressure regulator is used in fuel injected systems. The pc regulates the bigness of fuel injected into the engine by the bigness of epoch the fuel injectors are conduct. In establishment to accurately metre a particular magnitude of fuel into the engine at any prone continuance, the fuel force must be right the duplicate regardless of the manual duration introduced. The fuel strength regulator maintains that vigour by allowing any over-pressure to come back to the fuel container.
Connect the fuel force regulator to the fuel condemn. In most cases the fuel rail has a Schraeder valve, which looks like a tire air valve. This valve is used to check fuel pressure or relieve fuel pressure. Connect the fuel pressure regulator to this valve. Vehicles that do not have Schraeder valves require an appropriate adapters to fit between the inlet or supply hose and the fuel injection rail.
3. Consult a service manual for the proper fuel pressure for the specific vehicle and engine size; fuel pressure ratings can vary greatly depending on the latter. Once the proper fuel pressure for the vehicle has been established, start the vehicle. Record the fuel pressure.
4. Check the indicated fuel pressure against the factory specifications. If the fuel pressure is too low or high, pull the vacuum hose off and watch the gauge. If the fuel pressure remains the same, the fuel pressure gauge is faulty. Ideally, the fuel pressure should rise slightly from the factory specifications when the vacuum hose is removed, and return to factory specifications when reinstalled.
