When idling cannot be continued

Connect the M-MDS to the DLC-2 and verify that DTC P2090:00 or P2091:00 is displayed. (See On-board Diagnostic Test .)
- Perform the DTC inspection. (See DTC P2090:00 [PCM (SKYACTIV-G 2.5 (WITH CYLINDER DEACTIVATION))] .) (See DTC P2091:00 [PCM (SKYACTIV-G 2.5 (WITH CYLINDER DEACTIVATION))] .)
Remove the OCV for hydraulic variable valve timing system and verify that the spool valve is at maximum advanced position. (See OCV For Hydraulic Variable Valve Timing System Removal/Installation .)
Connect the OCV for hydraulic variable valve timing system.
Switch the ignition ON (engine off).
Verify that the spool valve is at the maximum advanced position.
- If the spool valve is stuck in the retard direction, inspect for the following:
  - Short circuit in wiring harnesses or connectors between OCV for hydraulic variable valve timing system and PCM
Inspect the hydraulic variable valve timing actuator. (See Hydraulic Variable Valve Timing Actuator Inspection .)