Mostly they are located at the pressure regulator on the fuel manifold on in the fuel line to the fuel manifold
Testimonial: "It is a sensor not a regulator. I was told regulator are for carb not fuel injection.Thank you anyway"
then you were told wrong
the pressure regulator controls the fuel pressure in the manifold to the injectors
excess pressure is returned to either the pump inlet or tank
the pressure sensor switches of the fuel pump to prevent it running under pressure
it reports to the ECM which cuts power to the pump relay and so turns the pump off
the difference is in the fuel pressures
for a carby the fuel pressure is around 5 psi and that can be controlled by the float and needle and seat where as fuel injection is around 55-65 psi and at above that pressure faulty injectors will leak
Thank you Bill you clear things up for me and are very helpful. I hope this takes care of the problem the van would not stay running and now won't start thank you you help out a lot
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Bill is right. The fuel pressure sensor is in the fuel rail at or usually near the regulator. Fuel injection works on a much higher pressure then a carburetor .
Testimonial: "Thank you Bill you have clear things up and are very helpful. I hope this is the promble van won't stay running and now won't start thank you"
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Vehicle info ?
2005 chevy uplander 3.8
Fuel tank pressure sensor is on top of the fuel tank. The fuel rail pressure sensor is on the fuel rail on top of the intake manifold.
Thank you
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