ENGINE DIAGNOSIS (RHZ ENGINE WITH TRIPLE-CONNECTOR ECM) 6-1-21
1. Double relay
2. Fuel pressure regulator
3. Fuel pressure sensor
4. ECM
5. Double relay fuse (30 A)
DTC P0191 (P0230) FUEL RAIL PRESSURE SENSOR/PRESSURE REGULATOR
CONSISTENCY FUNCTION
DTC P1112 (P0230) FUEL PRESSURE MONITORING CIRCUIT MALFUNCTION
WIRING DIAGRAM
DTC CONFIRMATION PROCEDURE
1) Connect scan tool to DLC with ignition switch OFF.
2) Turn ON ignition switch and clear DTC, pending DTC and freeze frame data by using scan tool and run engine
at idle speed for 10 sec. or more.
3) Then run engine 1000 rpm or more for 10 sec.
4) Check DTC and pending DTC by using scan tool.
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