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SEF394X Fuel Pressure Release Before disconnecting fuel line, release fuel pressure from fuel 1. Start engine. 2. Perform “FUEL PRESSURE RELEASE” in “WORK 3. Turn ignition switch off. SEF111T ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ OR ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ 1. Remove fuse for fuel pump. 2. Start engine. 3. After engine stalls, crank it two or three times to release 4. Turn ignition switch off and reconnect fuel pump fuse. SEF112T Fuel Pressure Check I When reconnecting fuel line, always use new clamps. I Make sure that clamp screw does not contact adjacent I Use a torque driver to tighten clamps. I Use Pressure Gauge to check fuel pressure. 1. Release fuel pressure to zero, refer to previous page. 2. Disconnect fuel hose between fuel filter and fuel tube (engine 3. Install pressure gauge between fuel filter and fuel tube. 4. Start engine and check for fuel leakage. SEF718B 5. Read the indication of fuel pressure gauge. At idling: Approximately 235 kPa (2.4 kg/cm 2 , 34 psi) A few seconds after ignition switch is turned OFF to Approximately 294 kPa (3.0 kg/cm 2 , 43 psi) 6. Stop engine and disconnect fuel pressure regulator vacuum 7. Plug intake manifold with a rubber cap. 8. Connect variable vacuum source to fuel pressure regulator. SEF114T 9. Start engine and read indication of fuel pressure gauge as Fuel pressure should decrease as vacuum increases. If results GI MA EM LC FE AT PD FA RA BR ST RS BT HA EL IDX BASIC SERVICE PROCEDURE EC-37 |