DTC P0089[L3 Turbo]
id0102b7802500
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DTC P0089 |
Fuel pressure regulator performance |
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DETECTION CONDITION
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• 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.
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POSSIBLE CAUSE
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• Spill valve control solenoid valve malfunction
• Connector or terminal malfunction
• PCM malfunction
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Diagnostic procedure
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STEP |
INSPECTION |
ACTION |
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1
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VERIFY FREEZE FRAME DATA HAS BEEN RECORDED
• Has the FREEZE FRAME DATA been recorded?
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Yes
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Go to the next step.
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No
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Record the FREEZE FRAME DATA on the repair order, then go to the next step.
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2
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VERIFY RELATED SERVICE INFORMATION AVAILABILITY
• Verify related Service Information availability.
• Is any related Service Information available?
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Yes
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Perform the repair or diagnosis according to the available Service Information.
• If the vehicle is not repaired, go to the next step.
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No
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Go to the next step.
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3
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INSPECT HIGH PRESSURE FUEL PUMP CONNECTOR FOR POOR CONNECTION
• Turn the ignition switch off.
• Disconnect the high pressure fuel pump connector.
• Inspect for poor connection (such as damaged/pulled-out pins, corrosion).
• Is there any malfunction?
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Yes
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Repair or replace the terminals, then go to Step 6.
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No
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Go to the next step.
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4
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INSPECT SPILL VALVE CONTROL SOLENOID VALVE
• Inspect the spill valve control solenoid valve.
• Is there any malfunction?
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Yes
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Replace the high pressure fuel pump, then go to Step 6.
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No
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Go to the next step.
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5
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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?
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Yes
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Repair the terminal, then go to the next step.
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No
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Go to the next step.
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6
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VERIFY TROUBLESHOOTING OF DTC P0089 COMPLETED
• Make sure to reconnect all the disconnected connectors.
• Clear the DTC from the PCM memory using the M-MDS.
• Start the engine.
• Is the same DTC present?
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Yes
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Replace the PCM, then go to the next step.
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No
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Go to the next step.
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7
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VERIFY AFTER REPAIR PROCEDURE
• Perform the “AFTER REPAIR PROCEDURE”.
• Are any DTCs present?
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Yes
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Go to the applicable DTC inspection.
(See DTC TABLE[L3 Turbo].)
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No
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DTC troubleshooting completed.
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