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P119A, P119B FUEL RAIL PRESSURE SENSOR EC-437 < DTC/CIRCUIT DIAGNOSIS > [MR FOR NISMO RS MODELS] C D E F G H I J K L M A EC N P O P119A, P119B FUEL RAIL PRESSURE SENSOR DTC Logic INFOID:0000000012197988 DTC DETECTION LOGIC DTC CONFIRMATION PROCEDURE 1. PRECONDITIONING-1 If DTC Confirmation Procedure is previously conducted, always perform the following procedure before con- ducting the next test. 1. Turn ignition switch OFF and wait at least 10 seconds. 2. Turn ignition switch ON. 3. Turn ignition switch OFF and wait at least 10 seconds. TESTING CONDITION: Before performing the following procedure, check that battery voltage is 9 V or more with ignition switch ON. >> GO TO 2. 2. PRECONDITIONING-2 NOTE: • When it is certain that the previous driving is performed with the engine warmed up, the next steps can be performed. • When it is difficult to satisfy the conditions, performing Component Function Check can identify the presence or absence of malfunction in the part/system that may result in a possible cause of this DTC. (Perform DTC Confirmation Procedure as much as possible.) 1. Start the engine and warm it up until engine coolant temperature reaches 70 °C (158°F) or more. 2. Stop the engine and leave the vehicle in a cool place (soak the engine) until the engine coolant tempera- ture reaches 35 °C (95°F) or less. CAUTION: • The difference between air temperature and engine coolant temperature must be 5 °C (9°F) or less. • Never turn ignition switch ON during soak the engine. DTC No. CONSULT screen terms (Trouble diagnosis content) DTC detecting condition Possible cause P119A FUEL PRESSURE SENSOR All of the following conditions are satisfied: tion switch OFF: 65 °C (149°F) or more • Engine coolant temperature: 35 °C (65°F) or less • Temperature difference between engine coolant and intake air: Less than 6 °C (42°F) • Fuel rail pressure: Less than 1.0 MPa (10.2 kg/cm 2 , 145 psi) (calculated by ECM) • Fuel system monitor: Excessively RICH • Harness or connectors (Fuel rail pressure sensor circuit is • Fuel rail pressure sensor sensor • Accelerator pedal position sensor 2 P119B FUEL PRESSURE SENSOR All of the following conditions are satisfied: tion switch OFF: 65 °C (149°F) or more • Engine coolant temperature: 35 °C (65°F) or less • Temperature difference between engine coolant and intake air: Less than 6 °C (42°F) • Fuel rail pressure: More than 1.5 MPa (15.3 kg/cm 2 , 217 psi) (calculated by ECM) • Fuel system monitor: Excessively LEAN |