DTC P0088:00 [MZR-CD 2.2]

id0102f3146100

DTC P0088:00

Fuel pressure system too high
DETECTION CONDITION
•  The PCM monitors the fuel pressure in the common rail from the fuel pressure sensor while the engine running. If the fuel pressure is more than 217 MPa {2,213 kgf/cm2, 31,473 psi}, the PCM determines that the fuel pressure is too high.
Monitoring condition
•  Battery voltage: 8—20 V
Diagnostic support note
•  The MIL illuminates if the PCM detects the above malfunction condition in two consecutive drive cycles or in one drive cycle while the DTC for the same malfunction has been stored in the PCM.
•  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.
•  DTCs are 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 pressure limiter malfunction
•  PCM malfunction

Diagnostic procedure

STEP

INSPECTION

ACTION
1
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.
2
VERIFY RELATED SERVICE INFORMATION AVAILABILITY
•  Verify related Service Information availability.
•  Is any related Service Information available?
Yes
Perform the 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.
3
VERIFY CURRENT SIGNAL STATUS: IS CONCERN INTERMITTENT OR CONSTANT?
•  Connect the M-MDS to the DLC-2.
•  Clear the DTC from the PCM memory using the M-MDS.
•  Start the engine.
•  Is the PENDING CODE for this 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].)
4
IDENTIFY TRIGGER DTC FOR FREEZE FRAME DATA (MODE2)
•  Is P0191:00, P0192:00, P0193:00 or P062A: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.
5
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 10.
6
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 suspect fuel line, then go to Step 10.
No
Go to the next step.
7
INSPECT SUCTION CONTROL VALVE
•  Inspect the suction control valve.
•  Is there any malfunction?
Yes
Repair the supply pump, go to Step 10.
(See SUPPLY PUMP REMOVAL/INSTALLATION [MZR-CD 2.2].)
No
Go to the next step.
8
INSPECT FUEL PRESSURE SENSOR
•  Inspect the fuel pressure sensor.
•  Is there any malfunction?
Yes
Replace the common rail, go to Step 10.
(See COMMON RAIL REMOVAL/INSTALLATION [MZR-CD 2.2].)
No
Go to the next step.
9
INSPECT COMMON RAIL
•  Inspect the common rail.
•  Is there any malfunction?
Yes
Replace the common rail, go to the next step.
(See COMMON RAIL REMOVAL/INSTALLATION [MZR-CD 2.2].)
No
Go to the next step.
10
VERIFY TROUBLESHOOTING OF DTC P0088:00 COMPLETED
•  Make sure to reconnect all disconnected connectors.
•  Clear the DTC from the PCM memory using the M-MDS.
•  Start the engine.
•  Is the PENDING CODE for this DTC present?
Yes
Replace the PCM, go to the next step.
(See PCM REMOVAL/INSTALLATION [MZR-CD 2.2].)
No
Go to the next step.
11
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.