DTC P1329 [MZR-CD (RF Turbo)]

id0102f1118200

DTC P1329

Common rail pressure higher than desired (engine running)
DETECTION CONDITION
•  PCM monitors common rail pressure using the fuel pressure sensor built in the common rail while engine running. If the actual fuel pressure is higher than 230 MPa {2,345 kgf/cm2, 33,359 psi} or the calculated pressure based on engine speed for 1 s, the PCM determines that the common rail pressure is higher than the required value.
•  PCM monitors common rail pressure using the fuel pressure sensor built in the common rail while engine running. If the actual fuel pressure is higher than 197 MPa {2,009 kgf/cm2, 28,565 psi} or calculated pressure based on engine speed for 60 s, the PCM determines that the common rail pressure higher then desired value.
Diagnostic support note
•  MIL illuminates if PCM detects the above malfunctioning 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 PCM detects the above malfunction conditions during first drive cycle.
•  FREEZE FRAME DATA is available.
•  DTC is stored in the PCM memory.
POSSIBLE CAUSE
•  Suction control valve malfunction
•  Fuel pressure limiter malfunction
•  PCM malfunction

Diagnostic procedure

STEP

INSPECTION

ACTION
1
VERIFY FREEZE FRAME DATA HAS BEEN RECORDED
•  Has FREEZE FRAME DATA been recorded?
Yes
Go to the next step.
No
Record the FREEZE FRAME DATA on the repair order, then go to the next step.
2
VERIFY RELATED REPAIR INFORMATION AVAILABILITY
•  Verify related service repair information availability.
•  Is any related repair information available?
Yes
Perform repair or diagnosis according to the available repair information.
•  If the vehicle is not repaired, go to the next step.
No
Go to the next step.
3
IDENTIFY TRIGGER DTC FOR FREEZE FRAME DATA
•  Is DTC P1329 on FREEZE FRAME DATA?
Yes
Go to the next step.
No
Go to troubleshooting procedures for DTC in FREEZE FRAME DATA.
(See DTC TABLE [MZR-CD (RF Turbo)].)
4
VERIFY FUEL PRESSURE AT COMMON RAIL
•  Access FRP PID.
•  Crank the engine.
•  Does the FRP PID indicate below fuel pressure limiter opening pressure?
Yes
Go to the next step.
No
Replace the common rail, then go to Step 6.
5
INSPECT SUCTION CONTROL VALVE
•  Inspect the suction control valve.
•  Is there any malfunction?
Yes
Go to the next step.
No
Replace the supply pump, then go to the next step.
(See SUPPLY PUMP REMOVAL/INSTALLATION [MZR-CD (RF Turbo)].)
6
VERIFY TROUBLESHOOTING OF DTC P1329 COMPLETED
•  Make sure to reconnect all disconnected connectors.
•  Turn the engine switch to ON position (engine off).
•  Clear the DTC from PCM memory using the M-MDS.
•  Start the engine.
•  Is the same DTC present?
Yes
Replace the PCM, go to the next step.
(See PCM REMOVAL/INSTALLATION [MZR-CD (RF Turbo)].)
No
Go to the next step.
7
VERIFY AFTER REPAIR PROCEDURE
•  Perform “AFTER REPAIR PROCEDURE”.
•  Are any DTCs present?
Yes
Go to the applicable DTC inspection.
(See DTC TABLE [MZR-CD (RF Turbo)].)
No
Troubleshooting completed.