Remove the harness holder (A).

Check the PCV valve (A), the hoses (B), the pipe (C), and the connections for leaks or restrictions.

At idle, make sure there is a clicking sound from the PCV valve when the hose between the PCV valve and the intake manifold is lightly pinched (A) with your fingers or pliers.
If there is no clicking sound, check the PCV valve washer for cracks or damage. If the washer is OK, replace the PCV valve and recheck.

Accelerator Pedal Module Removal/Installation
Remove the driver's dashboard lower cover.
Disconnect the APP sensor connector (A).
Remove the accelerator pedal module (B).
NOTE:
The APP sensor ...
Center Vent
NOTE: Take care not to scratch the dashboard or its related parts.
Remove these items:
Audio unit, without navigation system
('9-11 models)
Audio unit, with ...