OBD2 code P0027: Exhaust Valve Control Solenoid Circuit Range/Performance (Bank 1)
A solenoid valve routes engine oil to a valve control element on the exhaust side of bank 1.
Detected Root Component
Powertrain Component
Observed Symptoms
- Check engine light on
- Loss of power, no extra pull at higher engine speed
- Higher fuel consumption
- Rough idle possible if a phaser is affected
Possible Causes
- Oil level too low, wrong viscosity or sludged oil
- Feedback oil pressure switch faulty or leaking (systems with switch)
- Screen in front of the solenoid clogged, or solenoid sticking
- Mechanical fault in the valve train, e.g. locking pin or phaser sticking
- Contact resistance in wiring or connector
Tools Required
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Parts likely to be the cause (Moteur (général))
Moteur (général)
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Frequently asked questions about code P0027
What does code P0027 mean? ▾
OBD2 code P0027: Exhaust Valve Control Solenoid Circuit Range/Performance (Bank 1). A solenoid valve routes engine oil to a valve control element on the exhaust side of bank 1.
What are the symptoms of code P0027? ▾
Code P0027 may cause: Check engine light on, Loss of power, no extra pull at higher engine speed, Higher fuel consumption, Rough idle possible if a phaser is affected. The intensity of these symptoms varies depending on the vehicle and driving conditions.
What causes code P0027? ▾
The most common causes of code P0027 are: Oil level too low, wrong viscosity or sludged oil, Feedback oil pressure switch faulty or leaking (systems with switch), Screen in front of the solenoid clogged, or solenoid sticking, Mechanical fault in the valve train, e.g. locking pin or phaser sticking. A proper OBD2 diagnostic will pinpoint the exact cause.
Is it serious to drive with code P0027? ▾
Code P0027 has moderate severity (Warning). Short-term driving remains possible, but a prompt check is recommended to prevent worsening.
How do I fix code P0027? ▾
Start by reading the code with an OBD2 scanner, then follow the interactive decision tree on this page. Priority causes to check: Oil level too low, wrong viscosity or sludged oil, Feedback oil pressure switch faulty or leaking (systems with switch), Screen in front of the solenoid clogged, or solenoid sticking, Mechanical fault in the valve train, e.g. locking pin or phaser sticking. Difficulty: Medium · Estimated time: 30-60min.