Via which line?The pump is capable of much more than 48 psi so the remainder goes back to the tank...
BluetoothVia which line?
Regardless of what that is called or what it does, there is only one line that carries fuel from the tank to the fuel rail. It is a returnless system.Bluetooth
Seriously though that is a pulse damper and the name is pretty self explanatory.
Yep, the pressure regulator is located in the top of the fuel pump module. There is no return line from the rail to the tank.Regardless of what that is called or what it does, there is only one line that carries fuel from the tank to the fuel rail. It is a returnless system.
The pressure at the rail is equal to the pressure at the pump, unless you have a damaged fuel line or something. I would also recommend driving the vehicle with the pressure gauge hooked up. I usually tape it to the windshield and drive around the block. Not all fuel pressure issues will show up at idle or even a throttle snap. Sometimes you need good solid load to see a pressure drop.I will measure the pressure of the fuel system. I am trying to find out if this pressure, which I will measure before the rail, is the final pressure that reaches the injectors. If there is incorrect pressure, I will replace the pump and its valve.
When driving if the throttle is closed the fuel injectors should be cut off, so pressure would have no relivance in that situation unless there is a problem.Low or high pressure would cause the exhaust to explode when the throttle is back?
Thanks for catching my mistake....Via which line?
For 2.4L there is no second line. Only one line goes to the engine. Excess fuel is returned immediately from the pump valve.Thanks for catching my mistake....
I was expecting a return line; I should have looked closer...
It would have to be a ton. The engine will clear the manifold with quickness at cruise RPM. Maybe a leaking injector or possibly an exhaust leak. Both could cause decel misfires.Unless a lot of fuel has leaked before closing the throttle?
I think I need a new one of these rails......I can't find them anywhere though, does anyone know where to get one? It's for a 1999 Jeep Wrangler 2.5L 4CylWhat is this? Fuel pressure regulator? Is it disassembled, regulated?View attachment 246648