What Does Code P0002 Mean P0002 is a generic OBD-II code indicating an issue with the engine control module (ECM) reading signals from your fuel pressure regulator on your fuel injection rail mounted to your engine. The ECM regulates your fuel pressure from your fuel pump going to your engine through this circuit and receives input on your actual fuel pressure. When the computer detects a pressure it is not commanding to the fuel pump, it will set a Check Engine Light. The code will affect fuel economy and possibly damage the engine. On a side note, this code is rare. Related searches engine code P0002 P0002 fix obd P0002 dtc P0002 obd code P0002 obd2 P0002 P0002 car code diagnostic code P0002 car code P0002 check engine code P0002 fehlercode P0002 P0002 fiat codigo P0002 codigo falla P0002 codigo de falla P0002 que es el codigo P0002 P0002 kody błędów Possible symptoms Engine Light ON (or Service Engine Soon Warning Light) Possible causes Faulty Fuel Volume Regulator (FVR) Control Solenoid Fuel Volume Regulator (FVR) Solenoid harness is open or shorted Fuel Volume Regulator (FVR) Solenoid circuit poor electrical connection Troubleshooting P0002 The following steps will help you troubleshoot a P0002 code: Perform a visual inspection of the FVCV and connection. Many problems can easily be found in the harness and connectors. So, begin your diagnosis by visually inspecting the FVCV and its connection. Test the FVCV solenoid After the visual inspection, the next step is to test the FVCV. Do this by connecting a current probe to the power supply wire. With the engine running, current draw should be between 35 to 80 MA depending on the manufacturer. You can also test the internal resistance of the FVCV solenoid. Touch a meter lead to each terminal on the solenoid. Consult the manufacturer’s specifications for acceptable resistance value. Anything great than specification or a reading of out of limits (OL), means the FVCV solenoid is bad and should be replaced. While testing the FVCV can be done with a multimeter, it is even better to test it with an oscilloscope. Using a scope, the FVCV should produce a nice, square duty cycle waveform. Example of a duty cycle waveform pattern (Courtesy: .electronics-tutorials.ws) Check the circuit If the FVCV checks out OK, but you still have P0002 code illuminated, you’ll need to check the circuit. The FVCV will have two wires going to it: power and PCM controlled ground. Consult the repair manual for your vehicle to determine which wire is which. Disconnect the FVCV connector and touch one end of a test light to the B+ pin. Connect the test light clamp to the battery negative post. The test light should illuminate. If it does not, there is problem in the power supply circuit and you will need to consult the factory wiring diagram. Finally, check that the PCM is grounding the negative side of the circuit. Disconnect the FVCV connector and touch one end of a test light to the ground pin. Connect the test light clamp to the battery positive post. Crank the engine. If the PCM is grounding the circuit, the test light should flash. If it does not, there is either an open in the ground side of the circuit or problems with the PCM. Searches related to p0002 mercedes c250 p0002 mercedes p0002 p0002 astra p0002 vauxhall vectra p0002 nissan fuel volume regulator control circuit high fix p0002 ford fiesta mercedes fault code p0002
