Powertrain
generic / SAE
P04E1
Crankcase Ventilation Hose Connection Sensor Circuit
A dedicated sensor monitors whether the PCV hose is fitted to its connector at the engine. The ECU detects a circuit fault on this sensor - cannot determine whether the hose is connected. Required by some emissions regulations to flag a disconnected PCV hose immediately.
SystemPowertrain
Typegeneric / SAE
GroupP0
Range / number4 / E1
Possible causes
- Open in sensor circuit high
Inspection / repair
- Difficulty: easy
- DIY: possible
- Estimated cost: 60–250 €
- Estimated time: 0.4–1.2 h
- Component: pcv hose connection sensor
- MIL / check engine light
- emissions-relevant
Sources
References
sae:J2012