P04E2

Crankcase Ventilation Hose Connection Sensor Circuit Low

Severity

⚠️ Medium

Can you drive?

Limited driving only, diagnose soon

Approx. repair cost

$33–111 (est.)

Symptoms

Check Engine Light Is On
Increased oil consumption
Unstable engine operation at idle
Reduced engine efficiency

Causes

Malfunction of the crankcase ventilation hose connection sensor
Open or shorted wiring harness
Poor contact in sensor connectors
Damage to the crankcase ventilation hose

How to Fix

Check the integrity of the wiring harness and connectors
Test the crankcase ventilation hose connection sensor
Replace hose or sensor if necessary
Clean or replace the crankcase ventilation filter (if equipped)

Related codes

P04E0 P04E1 P04E3