P051C

Symptoms

• Check Engine Light Is On
• Possible unstable idle operation
• Related PCV System Codes
• Oil deposits in the intake tract

Causes

• Short circuit of the sensor signal wire to ground
• Sensor power wire break
• Faulty crankcase gas pressure sensor
• Blockage of the tube connecting the sensor to the crankcase
• ECU malfunction

How to Fix

1. Read error codes and check related PCV system codes
2. Find the crankcase gas pressure sensor according to the diagram
3. Check the supply voltage (5V) at the sensor connector
4. Check signal wire for short to ground
5. Make sure that the tube connecting the sensor to the crankcase is not clogged.
6. Replace the sensor if the characteristics do not match
7. Reset the error and check the system

Related codes

Error P051C by Vehicle Brand