DTC P0093:00 [PCM (SKYACTIV-D 2.2)]

id0102j5146200

DTC P0093:00	Fuel leakage from fuel pressure control system
DETECTION CONDITION	•  With the following conditions met, a condition in which the amount of fuel leakage exceeds 240 mm3/stroke is detected 3 times. ―  Battery positive voltage: 8 V or more ―  Engine speed: 600 rpm or more ―  Fuel-cut control is not implemented ―  Fuel pressure relief valve: Closed ―  Fuel pressure control: During execution ―  CKP sensor: Normal ―  The following DTCs are not detected •  Suction control valve: P0628:00, P0629:00 •  Common rail fuel pressure control system: P0089:00 •  Fuel injector: P2146:00, P2149:00, P2148:00, P2151:00, P2147:00, P2150:00, P1379:00, P1378:00, P0201:00, P0202:00, P0203:00, P0204:00 •  Malfunction in PCM: P062B:00 •  Fuel pressure sensor: P01C6:00, P01C5:00, P018D:00, P018C:00, P10CD:00 Diagnostic support note •  This is a continuous monitor (CCM). •  The check engine light illuminates if the PCM detects the above malfunction condition during the first drive cycle. •  FREEZE FRAME DATA/Snapshot data is available. •  DTC is stored in the PCM memory.
FAIL-SAFE FUNCTION	•  Limits the fuel pressure. (High pressure) •  Limits the engine torque/limits the maximum engine speed. •  Inhibits the automatic diesel particulate filter regeneration control. •  Inhibits the intake shutter valve control. •  Inhibits the manual diesel particulate filter regeneration control. •  Inhibits the EGR control. •  Stops the G-vectoring control (GVC). •  Limits the engine transaxle total control. •  Inhibits engine-stop by i-stop control.
POSSIBLE CAUSE	•  Fuel pressure relief valve malfunction •  Suction control valve malfunction •  Fuel pressure sensor (integrated with fuel injector No.2/No.3) malfunction •  Fuel injector malfunction •  Fuel pipe crushing or breakage (poor contact) •  Fuel leakage or clogging in fuel line •  Supply pump malfunction •  PCM malfunction
SYSTEM WIRING DIAGRAM	Not applicable

Diagnostic Procedure

Step	Inspection	Results	Action
1	RECORD VEHICLE STATUS WHEN DTC WAS DETECTED TO UTILIZE WITH REPEATABILITY VERIFICATION Note •  Recording can be facilitated using the screen capture function of the PC. •  Record the freeze frame data/snap shot data.	—	Go to the next step.
2	VERIFY OTHER RELATED DTCs •  Switch the ignition OFF, and then switch it ON (engine off). •  Display the DTCs using the M-MDS. (See ON-BOARD DIAGNOSTIC TEST [PCM (SKYACTIV-D 2.2)]) •  Has any DTC other than P0093:00 been stored?	Yes	Repair the malfunctioning location according to the applicable DTC troubleshooting. (See DTC TABLE [PCM (SKYACTIV-D 2.2)])
		No	Go to the next step.
3	INSPECT FUEL PRESSURE RELIEF VALVE •  Inspect the fuel pressure relief valve. (See FUEL PRESSURE RELIEF VALVE INSPECTION [SKYACTIV-D 2.2]) •  Is the fuel pressure relief valve normal?	Yes	Go to the next step.
		No	Replace the common rail, then go to Step 10. (See COMMON RAIL REMOVAL/INSTALLATION [SKYACTIV-D 2.2])
4	INSPECT SUCTION CONTROL VALVE •  Inspect the suction control valve. (See SUCTION CONTROL VALVE INSPECTION [SKYACTIV-D 2.2]) •  Is the suction control valve normal?	Yes	Go to the next step.
		No	Replace the suction control valve, then go to Step 10. (See SUCTION CONTROL VALVE REMOVAL/INSTALLATION [SKYACTIV-D 2.2])
5	INSPECT FUEL PRESSURE SENSOR (INTEGRATED WITH FUEL INJECTOR NO.2/NO.3) •  Inspect the fuel pressure sensor (integrated with fuel injector No.2/No.3). (See FUEL PRESSURE SENSOR INSPECTION [SKYACTIV-D 2.2] •  Is the fuel pressure sensor (integrated with fuel injector No.2/No.3) normal?	Yes	Go to the next step.
		No	Replace the fuel pressure sensor (integrated with fuel injector No.2/No.3), then go to Step 10. (See FUEL INJECTOR REMOVAL/INSTALLATION [SKYACTIV-D 2.2])
6	INSPECT FUEL INJECTOR •  Inspect the fuel injector. (See FUEL INJECTOR INSPECTION [SKYACTIV-D 2.2]) •  Are the fuel injectors normal?	Yes	Go to the next step.
		No	Replace the fuel injector, then go to Step 10. (See FUEL INJECTOR REMOVAL/INSTALLATION [SKYACTIV-D 2.2])
7	INSPECT FUEL PIPING •  Inspect the fuel piping. (See FUEL SYSTEM LOCATION INDEX [SKYACTIV-D 2.2] •  Is the fuel piping installation normal?	Yes	Go to the next step.
		No	Install the fuel piping correctly, then go to Step 10.
8	INSPECT FUEL LINE FOR FUEL LEAKAGE OR CLOGGING •  Inspect the following fuel lines of each cylinder for fuel leakage or clogging. ―  Supply pump to common rail ―  Common rail to fuel injector •  Is the fuel line normal?	Yes	Go to the next step.
		No	Repair or replace the malfunctioning location, then go to Step 10.
9	INSPECT SUPPLY PUMP •  Inspect the supply pump. (See SUPPLY PUMP INSPECTION [SKYACTIV-D 2.2] •  Is the supply pump normal?	Yes	Go to the next step.
		No	Replace the supply pump, then go to the next step. (See SUPPLY PUMP REMOVAL/INSTALLATION [SKYACTIV-D 2.2]
10	VERIFY THAT REPAIRS HAVE BEEN COMPLETED •  Reconnect all disconnected connectors and hoses. •  Refer to the [MEMORY CLEARING PROCEDURE] and clear the DTC. (See CLEARING DTC [PCM (SKYACTIV-D 2.2)]) •  Start the engine and drive the vehicle under the freeze frame data/snapshot data condition. Warning •  To prevent an accident, work with another person when the vehicle is being driven (one person drives vehicle, other person operates M-MDS). •  Observe legal speed limits when driving the vehicle and perform the procedure in a location where safety can be assured. •  Display the DTCs using the M-MDS. (See ON-BOARD DIAGNOSTIC TEST [PCM (SKYACTIV-D 2.2)]) •  Has DTC P0093:00 been recorded?	Yes	Repeat the inspection from Step 1. •  If the malfunction recurs, replace the PCM, then go to the next step. (See PCM REMOVAL/INSTALLATION [SKYACTIV-D 2.2])
		No	Go to the next step.
11	VERIFY OTHER DTCs •  Has any other DTC or pending code been stored?	Yes	Repair the malfunctioning location according to the applicable DTC troubleshooting. (See DTC TABLE [PCM (SKYACTIV-D 2.2)])
		No	DTC troubleshooting completed.