FixVault

When idling can be continued

If simulation function of M-MDS is used: 

  1. Warm up the engine to normal operating temperature.
  2. Verify that the DTC P2088:00 or P2089:00 are shown. (See ON-BOARD DIAGNOSTIC TEST ).
  3. Start the engine and run it is idling.
  4. Access the VT Duty1 wt PID simulation function using the M-MDS. (See ON-BOARD DIAGNOSTIC TEST ).
  5. Increase the OCV duty value and verify that the engine idles roughly or stalls.
    • If as specified, inspect the timing belt component (valve timing deviation).
    • If not as specified, go to the next step.
  6. Remove the OCV while the connector is connected. (See OIL CONTROL VALVE (OCV) REMOVAL/INSTALLATION ).
  7. Switch the ignition to ON (engine off).
  8. Access the VT Duty1 wt PID simulation function using the M-MDS. (See ON-BOARD DIAGNOSTIC TEST ).
  9. Increase the OCV duty value and verify that the spool valve operates in the advance direction.
    • If as specified, inspect the following hydraulic passage for restriction and/or leakage.
      • Oil pressure switch-OCV
      • OCV-Camshaft
      • Camshaft internal passage
    • If not as specified, inspect the following:
  10. If they are normal, replace the intake camshaft pulley (with a built-into variable valve timing actuator). (See VARIABLE VALVE TIMING ACTUATOR REMOVAL/INSTALLATION ).

If simulation function of M-MDS is not used: 

  1. Disconnect the OCV connector.
  2. Verify that the DTC P2088:00 or P2089:00 are shown. (See ON-BOARD DIAGNOSTIC TEST ).
  3. Warm up the engine and idle it.
  4. Apply battery voltage to the OCV and verify that the engine idles roughly or stalls.
    • If the engine idles roughly or stalls, inspect the timing belt component (valve timing deviation).
    • If the engine does not idle roughly or stalls, go to the next step.
  5. Remove the OCV and perform the spool valve operation inspection. (See OIL CONTROL VALVE (OCV) REMOVAL/INSTALLATION ).
    • If not as specified, inspect the following:
    • If as specified, inspect the following hydraulic passages for restriction or leakage or both:
      • Oil pressure switch-OCV
      • OCV-Camshaft
      • Camshaft internal passage
  6. If they are normal, replace the camshaft pulley (with built-into variable valve timing actuator). (See VARIABLE VALVE TIMING ACTUATOR REMOVAL/INSTALLATION ).