P052E

PCV Regulator Valve Performance

Severity

⚠️ Medium

Can you drive?

Limited driving only, diagnose soon

Approx. repair cost

$33–111 (est.)

Symptoms

Unstable idle
Increased oil consumption
Reduced engine power
Check Engine Light Illuminates

Causes

Stuck PCV valve
Crankcase ventilation system clogged
Open or shorted valve control circuit
Malfunction of sensors affecting PCV operation
Mechanical damage to the valve

How to Fix

Diagnostics of the crankcase ventilation system
Checking the operation of the PCV valve
Cleaning or replacing the PCV valve
Checking the integrity of the wiring harness
Checking the valve connection to the intake manifold
Resetting error codes and checking after repair

Related codes

P0171 P0172 P0300 P052F