PCV System Monitor

OBD System Description - PCV System Monitor

System Description / Monitoring Procedure
The OBD-II system should detect a malfunction of the PCV system when a disconnection of the system occurs between either the crankcase and the PCV valve, or between the PCV valve and the intake manifold.

It does not stall for a while at the cold start condition when a disconnection hose between the PCV valve and the intake manifold. However, it stalls almost at a engine warm up condition.

Therefore, the regulations is satisfied, because the malfunction will be detected by the conventional diagnoses or engine stalls.

DTC Description / Detecting Condition / Confirmation Procedure

P0134
Refer to DTC P0134: O2 Sensor (Bank 1 Sensor-1) No Activity Detected:H27 Engine.

P0154
Refer to DTC P0154: O2 Sensor (Bank 2 Sensor-1) No Activity Detected:H27 Engine.

P0300
Refer to DTC P0300 / P0301 / P0302 / P0303 / P0304 / P0305 / P0306: Misfire Detected:H27 Engine.

Operation:

Enable Conditions:

Typical Malfunction Thresholds:

PCV System Monitor