|
|
EC-494 < PERIODIC MAINTENANCE > [VQ40DE] FUEL PRESSURE PERIODIC MAINTENANCE FUEL PRESSURE Fuel Pressure Check INFOID:0000000009484239 FUEL PRESSURE RELEASE With CONSULT 1. Turn ignition switch ON. Without CONSULT 1. Remove fuel pump fuse (No.48) located in IPDM E/R. pressure. 4. Turn ignition switch OFF. FUEL PRESSURE CHECK CAUTION: Be careful not to scratch or get the fuel hose connection area dirty when servicing, so that the quick connector o-ring maintains seal ability. NOTE: • Prepare pans or saucers under the disconnected fuel line because the fuel may spill out. The fuel pressure cannot be completely released because N50 models do not have fuel return system. • Use Fuel Pressure Gauge Kit J-44321 and Fuel Pressure Adapter J-44321-6 to check fuel pressure. EM-45, "Removal and Installation" • Do not twist or kink fuel hose because it is plastic hose. • Do not remove fuel hose from quick connector. • Keep fuel hose connections clean. 3. Install Fuel Pressure Adapter J-44321-6 and Fuel Pressure Gauge (from kit J-44321) as shown in figure. • Do not distort or bend fuel rail tube when installing fuel pres- sure gauge adapter. • When reconnecting fuel hose, check the original fuel hose for damage and abnormality. 4. Turn ignition switch ON (reactivate fuel pump), and check for fuel leakage. 5. Start engine and check for fuel leakage. • During fuel pressure check, check for fuel leakage from fuel connection every 3 minutes. 7. If result is unsatisfactory, go to next step. BBIA0534E At idling: Approximately 350 kPa (3.57 kg/cm 2 , 51 psi) BBIA0535E |