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2008 - MX-5 - Engine

DTC P0011 [LF]



DTC P0011

CMP timing over-advanced

DETECTION CONDITION

  • The actual valve timing is over-advanced by 15 ° from the target valve timing for specified period when the oil control valve (OCV) is controlled in the maximum valve timing retard condition.

    • Monitoring condition
    • Engine coolant temperature is above 63 °C {145.4 °F}

    Diagnostic support note
  • This is a continuous monitor (CCM).

  • The MIL illuminates if the PCM detects the above malfunction condition during the first drive cycle.

  • PENDING CODE is available if the PCM detects the above malfunction condition.

  • FREEZE FRAME DATA is available.

  • The DTC is stored in the PCM memory.

POSSIBLE CAUSE

  • OCV malfunction

  • Spool valve in OCV is stuck in advanced position

  • Variable valve timing actuator is stuck in advanced position

  • Loose timing chain or improper valve timing due to timing chain slippage

  • 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 Bulletins and/or on-line 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

INSPECT OCV FOR MALFUNCTION

Yes

Go to the next step.

No

Replace the OCV, then go to Step 6.

(See OIL CONTROL VALVE (OCV) REMOVAL/INSTALLATION [LF].)

4

INSPECT STOPPER PIN MECHANISM

Yes

Go to the next step.

No

Replace the variable valve timing actuator, then go to Step 6.

(See VARIABLE VALVE TIMING ACTUATOR REMOVAL/INSTALLATION [LF].)

5

INSPECT ROTOR POSITION
  • Remove the variable valve timing actuator.

  • Is the rotor position at the maximum valve timing retard?

Yes

VARIABLE VALVE TIMING MECHANISM IS NORMAL

NOTE:

  • This DTC is detected as an intermittent concern.

  • An intermittent concern might be removed using the cleaning mode of the variable valve timing control function.

Go to the next step.

No

Replace the variable valve timing actuator, go to the next step.

(See VARIABLE VALVE TIMING ACTUATOR REMOVAL/INSTALLATION [LF].)

6

VERIFY TROUBLESHOOTING OF DTC P0011 COMPLETED
  • Make sure to reconnect all disconnected connectors.

  • Clear the DTC from the PCM memory using the M-MDS.

  • Turn the ignition switch off.

  • Start the engine and warm it up completely.

  • Is the same DTC present?

Yes

Replace the PCM, then go to the next step.

(See PCM REMOVAL/INSTALLATION [LF].)

No

Go to the next step.

7

VERIFY AFTER REPAIR PROCEDURE

Yes

Go to the applicable DTC inspection.

(See DTC TABLE [LF].)

No

Troubleshooting completed.




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