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FL -234 FUEL SYSTEM MONITOR SCANTOOL DATA E98E8154 1. Connect Scantool to Data Link Connector (DLC). 2. Warm engine up to normal operating temperature. 3. Turn "OFF" electrical devices and A/C. 4. Monitor "FUEL PRESSURE MEASURED", "INJ. PUMP REGULATOR","RAIL PRESS. REGULATOR1" parameter on SPECIFICATION : Idle(without load) Accelerating(stall test) Diagnosis FUEL PRESSURE MEASURED 27 ± 5 Mpa above 75 Mpa press. increases INJ. PUMP REGULATOR 34 ± 3% 38 ± 3% duty increases RAIL PRESS. REGULATOR1 16 ± 3% 45 ± 3% duty increases Fig.1 Fig.2 Fig.2) Fuel pressure and Fuel pressure regulator valve data at idle. Fig.3 Fig.4 LFIG375A |