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 DTC P0089 [L3 Turbo]

DTC P0089 [L3 Turbo]

id0102b7802500

DTC P0089

Fuel pressure regulator performance

DETECTION CONDITION

• If the fuel pressure average value measured by the PCM exceeds the specification when the camshaft is rotating at a specified rate, the PCM determines that there is a fuel pressure regulator performance problem.
Diagnostic support note
• This is a continuous monitor (Other).
• The MIL does not illuminate.
• FREEZE FRAME DATA is not available.
• DTCs are stored in the PCM memory.

POSSIBLE CAUSE

• Spill valve control solenoid valve malfunction
• Connector or terminal malfunction
• PCM malfunction

Diagnostic procedure

STEP

INSPECTION

ACTION

1
VERIFY FREEZE FRAME DATA AND DIAGNOSTIC MONITORING TEST RESULTS 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 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.
3
INSPECT SPILL VALVE CONTROL SOLENOID VALVE CONNECTOR FOR POOR CONNECTION
• Turn the ignition switch off.
• Disconnect the spill valve control solenoid valve connector.
• Inspect for poor connection (such as damaged/pulled-out pins, corrosion).
• Is there any malfunction?
Yes
Repair or replace the terminals, then go to Step 6.
No
Go to the next step.
4
INSPECT SPILL VALVE CONTROL SOLENOID VALVE
• Inspect the spill valve control solenoid valve.
• Is there any malfunction?
Yes
Replace the high pressure fuel pump, then go to Step 6.
No
Go to the next step.
5
INSPECT PCM CONNECTOR FOR POOR CONNECTION
• Turn the ignition switch off.
• Disconnect the PCM connector.
• Inspect for poor connection (such as damaged/pulled-out pins, corrosion.)
• Is there any malfunction?
Yes
Repair the terminal, then go to the next step.
No
Go to the next step.
6
VERIFY TROUBLESHOOTING OF DTC P0089 COMPLETED
• Make sure to reconnect all the disconnected connectors.
• Clear the DTC from the PCM memory using the WDS or equivalent.
• Start the engine.
• Is the same DTC present?
Yes
Replace the PCM, then go to the next step.
No
Go to the next step.
7
VERIFY AFTER REPAIR PROCEDURE
• Perform the "AFTER REPAIR PROCEDURE".
• Are any DTCs present?
Yes
Go to the applicable DTC inspection.
No
DTC troubleshooting completed.