Sanesaer codes open p1250 - HP 9250c Digital Sender (CB472AABA)

Code P1250 = Pressure Regulator Control Solenoid Circuit
This is the fuel pressure regulator. I would recommend you get a Good mechanic to deal with this. Fuel injection systems run at Very High pressures and can be dangerous if you don't know what you are doing.

1250 is the fuel pressure regulator and 1569 is variable timing control solenoid. Both will cause rough running. I would check the regulator out first.

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.

The location of WHAT???

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

P1250 is a faulty fuel level sender. Does your fuel gauge act funny?

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....

Hi if the catalyst was replaced or eliminated this code p421 will always come out p1250 is that there's a problem with the ignition switch good luck

P1127 Long Term Fuel Trim mult.,Bank1 System too Rich

P1129 Long Term Fuel Trim mult.,Bank2 System too Rich

P1250 Fuel Level Too Low

P1300 Misfire detected Reason: Fuel level too low

P0154 02 Sensor Circuit No Activity Detected (Bank 2 Sensor 1)

P0300 Random/Multiple Cylinder Misfire Detected

P0303 Cylinder 3 Misfire Detected

P0304 Cylinder 4 Misfire Detected

It sounds like there is a lot going on.

Good Luck

Brian