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Re: where its the location for this code p1250
Find the fuel rail. On the the end of one of the rails you will see the fuel pressure regulator. It will have a small vacuum hose coming out of the top of it. Follow that hose to the fuel pressure regulator solenoid.
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OBD code of: "P1250- PRC Solenoid Circuit Malfunction. Which malfunction of Fuel Pressure Regulator Control unit. PRC is located
by the fuel pump by the left side on the bottom rail under some plastic you will find it. PRC costs about $90.
Code P1250 is PRC malfunction, Which is for Fuel Pressure Regulator Control unit. I have answered this question already. PRC is on the Bottom fuel rail by the fuel pump by the left side under some plastic covers.
Fuel Pressure Regulator Control Solenoid
Since the code came back immediately this indicates that it is a hard fault.
The solenoid is an electrical switch controlled by the ECM. In this case it
controls vacuum provided to the fuel pressure regulator. On this vehicle locate
the fuel injectors and the rail above them. At the end of the rail is the
regulator which on it should have a vacuum hose. Check out the hose make sure
there is not leaks or it is not coming apart. If it is okay the other end of it
plugs into the solenoid. This is the failed component.
Diagnostic Test Code (DTC) P1250 is a manufacturer - specific code which has a general description of "Pressure Regulator Control (PRC) Solenoid Circuit Malfunction".
The PCM monitors input voltage at Pin number 44 when the ignition is turned on. DTC P1250 sets when less than .44 volts are present. The possible causes are: > PRC Valve malfunction (open or shorted internally) > Open or short circuit between the PRC valve and the PCM (control circuit) > Open or short circuit in the solenoid ignition voltage supply circuit > Failed PRC valve (stuck open) > Malfunctioning PCM
P1250- PRC Solenoid Circuit Malfunction, could be a problem with you fuel pressure regulator, i would check the pressure of the fuel rail with a fuel pressure gauge depending on what BMW you own fuel pressure spec it different.E39s are supposed to have 50 +/-2 psi of operating pressure
p1188: Fuel Control (Bank 1 Sensor 1) p1189: Fuel Control (Bank 2 Sensor 1) p0171 and p0173: These are very common codes on BMW's which can also be false codes, try
clearing the codes and run the test again they may not come up again. p1250: Never came across that....