How much pressure does a fuel pump put out?
Electric fuel pumps are normally used to supply the higher pressure demanded by the system. The required pressure can be as high as 66 psi with port injection. The pressure on the throttle body injection systems is between 9 and 18 psi.
What is the fuel system pressure?
With a return system, the base pressure is set with the engine off, but the pump running. For a GM, this pressure is usually set to 58psi (factory fuel pressure in the rail). The vacuum/boost referenced regulator will help to change the pressure in the rail based on the pressure in the manifold.
What happens when fuel pressure is too high?
Too high of pressure may result in, over fueling of the engine. As a result, this can lead to a rough running engine; poor fuel mileage, and black smoke coming from the exhaust. If your regulator is going bad, your car could display several different symptoms.
How to check fuel pressure in Toyota RAV4?
Measure the fuel pressure at idle. If the pressure is not as specified, check the fuel pump and injectors. After checking the fuel pressure, disconnect the cable from the negative (-) battery terminal and carefully remove sst and the fuel tube connector to prevent fuel from spilling.
When to disconnect the fuel line in a Toyota RAV4?
Discharge fuel system pressure procedures must be performed before disconnecting any part of the fuel system. After performing the discharge fuel system pressure procedures, pressure will remain in the fuel line. When disconnecting the fuel line, place a cloth or equivalent over fittings to reduce the risk of fuel spray.
Where is the fuel tube connector on a Toyota RAV4?
Mount the retainer of the fuel tube connector onto the chamfered part of sst. Slide sst and fuel tube connector together towards the fuel tube until they make a click sound, and then disconnect the fuel tube.
Do you need to do a fuel pressure test?
This test is only necessary if other pressure tests indicate lower than normal fuel pressure. CAUTION: Perform this test only long enough to determine if pressure rises above minimum specification; risk exists of blowing coupler hose off of pump. This test is only necessary if other pressure tests indicate lower than normal fuel pressure.