Crankcase Pressure Sensor B Circuit Range/Performance

Where it lives

For P2C33, the description names the sensor as the part involved.

Check these first

• A crankcase pressure sensor B reading outside its expected range
• A blocked crankcase vent skewing crankcase pressure
• An intermittent connection at sensor B
• A sensor B that reads erratically with engine load

What to do next

1. Read crankcase pressure sensor B on a scan tool
2. Check the crankcase vent and PCV path for a blockage
3. Test the sensor B circuit for an intermittent fault
4. Compare sensor B to a known good pressure reading
5. Replace crankcase pressure sensor B if its output stays skewed
6. Clear the code and retest

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