inside the intake attached to the injector module
41 to 47 psi
43 PSI with engine at Idle with Fuel Regulator vacuum line disconnected and plugged.
You probably have a plugged fuel filter. See if you can put a fuel pressure gauge on the fuel supply line at the engine and check your fuel pressure. It could also be a fuel pressure regulator
39-=43
Chevrolet doesn't use a fuel pump reset switch. You more than likely have a failed fuel pump.
It means to check the fuel system fuel filter fuel pressure O2 sensor(s)
Your fuel pressure drop could be do to a clogged filter, pinched line/hose, or a weak fuel pump. You should have around 35 psi at idle and 43 off idle. I hope this helps answer your question.
Straight out of the FSM :at idlewith vac - 34 psiwithout- 43 psi
knock sensor
knock sensor
running 26-35 off 37-43 and it dont matter if its a dohc or ohv.the pressure is the same.
The stock fuel pressure for a 1997 Mitsubishi GST is 38 psi. Stock injectors are rated at 43 PSI but anything lower should lead to have the fueling system of the car inspected.