DTC P0093:00 [MZR-CD 2.2]

id0102f3146200

DTC P0093:00

Fuel system leak detection
DETECTION CONDITION
•  The PCM monitors the fuel quantity corresponding to fuel pressure change from the fuel pressure sensor while the engine running. If the fuel quantity higher than the preprogrammed criteria, the PCM determines fuel system leakage.
Monitoring conditions
•  Following conditions are met:
―  Battery voltage: 8-20 V
―  Engine speed: more than 600 rpm
Diagnostic support note
•  The MIL illuminates if the PCM detects the above malfunction condition in first drive cycle.
•  PENDING CODE is available if the PCM detects the above malfunction condition during the first drive cycle.
•  FREEZE FRAME DATA (mode2) and snapshot data are available.
•  The DTC is stored in the PCM memory.
POSSIBLE CAUSE
•  Fuel pipe improper connection on fuel tank
•  Fuel leakage or clogged fuel line
•  Suction control valve malfunction
•  Supply pump malfunction
•  Fuel pressure sensor malfunction
•  Fuel injector malfunction
•  PCM malfunction

Diagnostic procedure

STEP

INSPECTION

ACTION
1
IDENTIFY TRIGGER DTC FOR FREEZE FRAME DATA (MODE2)
•  Is DTC P0093:00 on FREEZE FRAME DATA (mode2)?
Yes
Go to the applicable DTC inspection.
(See DTC TABLE [MZR-CD 2.2].)
No
Go to the next step.
2
VERIFY FREEZE FRAME DATA (MODE2) OR SNAPSHOT DATA HAVE BEEN RECORDED
•  Have FREEZE FRAME DATA (mode2) or snapshot data been recorded?
Yes
Go to the next step.
No
Record the FREEZE FRAME DATA (mode2) and snapshot data on the repair order, then go to the next step.
3
VERIFY RELATED SERVICE INFORMATION AVAILABILITY
•  Verify related Service Information availability.
•  Is any related Service Information available?
Yes
Perform repair or diagnosis according to the available Service Information.
•  If the vehicle is not repaired, go to the next step.
No
Go to the next step.
4
VERIFY RELATED PENDING CODE OR STORED DTC
•  Switch the ignition to off, then to the ON position (Engine off).
•  Verify the related PENDING CODE or stored DTCs.
•  Is the PENDING CODE/DTC P0192:00, P0193:00 or P062A:00 also present?
Yes
Go to the appropriate DTC inspection.
(See DTC P0192:00 [MZR-CD 2.2].)
(See DTC P0193:00 [MZR-CD 2.2].)
(See DTC P062A:00 [MZR-CD 2.2].)
No
Go to the next step.
5
VERIFY CURRENT SIGNAL STATUS: IS CONCERN INTERMITTENT OR CONSTANT?
•  Clear the DTC from the PCM memory using the M-MDS.
•  Start the engine.
•  Perform the KOER self test.
•  Is the same DTC present?
Yes
Go to the next step.
No
Intermittent concern exists.
Perform the “INTERMITTENT CONCERN TROUBLESHOOTING”.
(See INTERMITTENT CONCERN TROUBLESHOOTING [MZR-CD 2.2].)
6
INSPECT FUEL PIPE CONNECTION ON FUEL TANK
•  Inspect the fuel pipes for supply and return connection at fuel tank.
•  Are fuel pipes connected properly?
Yes
Go to the next step.
No
Reconnect fuel pipes properly, then go to Step 11.
7
INSPECT FUEL LINE
•  Switch the ignition to off.
•  Inspect for fuel leakage or clogging in the following fuel lines for each cylinder:
―  Supply pump and common rail.
―  Common rail and fuel injector.
•   Is there any malfunction?
Yes
Repair or replace the suspected fuel line, go to Step 11.
No
Go to the next step.
8
INSPECT SUCTION CONTROL VALVE
•  Inspect the suction control valve.
•  Is there any malfunction?
Yes
Repair the supply pump, go to Step 11.
(See SUPPLY PUMP REMOVAL/INSTALLATION [MZR-CD 2.2].)
No
Go to the next step.
9
INSPECT FUEL PRESSURE SENSOR
•  Inspect the fuel pressure sensor.
•  Is there any malfunction?
Yes
Replace the common rail, go to Step 11.
(See COMMON RAIL REMOVAL/INSTALLATION [MZR-CD 2.2].)
No
Go to the next step.
10
INSPECT FUEL INJECTOR
•  Inspect the fuel injector.
•  Is there any malfunction?
Yes
Replace the fuel injector, go to the next step.
(See FUEL INJECTOR REMOVAL/INSTALLATION [MZR-CD 2.2].)
No
Go to the next step.
11
VERIFY TROUBLESHOOTING OF DTC P0093:00 COMPLETED
•  Make sure to reconnect all disconnected connectors.
•  Clear the DTC from the PCM memory using the M-MDS.
•  Start the engine.
•  Perform the KOER self test.
•  Is the same DTC present?
Yes
Repeat the inspection from Step 1.
•  If the malfunction recurs, replace the PCM.
Go to the next step.
No
Go to the next step.
12
VERIFY AFTER REPAIR PROCEDURE
•  Perform the “AFTER REPAIR PROCEDURE”.
•  Are any DTCs present?
Yes
Go to the applicable DTC inspection.
(See DTC TABLE [MZR-CD 2.2].)
No
DTC troubleshooting completed.