AutoCodes – Subaru – P0027 Subaru

P0027 Subaru Code - Exhaust Valve Control Solenoid Circuit Range/Performance Bank 1

Quick Answer

The Continuously Variable Valve Timing (CVVT) system is installed to the chain sprocket of the exhaust camshaft. Common causes include Dirty engine oil, Low engine oil level, Faulty exhaust valve control solenoid. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means: P0027 Subaru indicates Exhaust Valve Control Solenoid Circuit Range/Performance Bank 1.
Common causes: Common causes include Dirty engine oil, Low engine oil level, Faulty exhaust valve control solenoid.
Severity: High - diagnose this code as soon as possible.
Can I drive?: Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

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Code Popularity 11,807

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Jun 14, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P0027 Subaru Description

The Continuously Variable Valve Timing (CVVT) system is installed to the chain sprocket of the exhaust camshaft. This system controls the exhaust camshaft to provide the optimal valve timing. The Engine Control Module (ECM) controls the Oil Control Valve(OCV), based on the signals output from mass air flow, throttle position and engine coolant temperature. The CVVT controller regulates the intake camshaft angle using oil pressure through the OCV. As result, the relative position between the camshaft and the crankshaft becomes optimal, and the engine torque improves, fuel economy improves, exhaust emissions decrease under overall driving conditions.

OBDII Code P0027 Subaru - Exhaust Valve Control Solenoid Circuit Range/Performance Bank 1 - AutoCodes.com — P0027 Subaru Code - Exhaust Valve Control Solenoid Circuit Range/Performance Bank 1

What does this mean?

What are the Possible Causes of the DTC P0027 Subaru?

Dirty engine oil
Low engine oil level
Faulty exhaust valve control solenoid
Exhaust valve control solenoid harness is open or shorted
Exhaust valve control solenoid circuit poor electrical connection

How to Fix the DTC P0027 Subaru?

Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P0027 Subaru code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.

Need more information about the P0027 Subaru code?

Need more information on how to fix the P0027 Subaru code? Get Access to Factory Service Manuals

Need Help with the Code?

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About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about P0027 Subaru Code

1. What are the common symptoms of OBDII code P0027 in a Subaru?

The common symptoms of OBDII code P0027 in a Subaru include rough idling, decreased engine performance, and potentially stalling.

2. What are the possible causes of OBDII code P0027 in a Subaru?

Possible causes of OBDII code P0027 in a Subaru include a faulty exhaust valve control solenoid, wiring issues, low engine oil levels, or a failed engine control module.

3. How serious is OBDII code P0027 in a Subaru?

OBDII code P0027 in a Subaru should be addressed promptly as it can lead to poor engine performance, reduced fuel efficiency, and potentially more severe engine damage if left unresolved.

4. Can I drive my Subaru with OBDII code P0027?

It is not recommended to drive your Subaru with OBDII code P0027, as the issue can worsen over time and potentially cause more significant damage to the engine.

5. How do I diagnose OBDII code P0027 in my Subaru?

Diagnosing OBDII code P0027 in a Subaru typically involves performing a thorough inspection of the exhaust valve control solenoid, checking the wiring harness for any damage, and testing the engine oil level.

6. Can I repair OBDII code P0027 in my Subaru myself?

While some DIY enthusiasts may attempt to repair OBDII code P0027 in a Subaru, it is recommended to consult a professional mechanic for an accurate diagnosis and proper repair to ensure the issue is resolved correctly.

7. How much does it cost to repair OBDII code P0027 in a Subaru?

The cost to repair OBDII code P0027 in a Subaru can vary depending on the exact cause of the issue, but it generally ranges from $200 to $600, including parts and labor.

8. How long does it take to repair OBDII code P0027 in a Subaru?

The repair time for OBDII code P0027 in a Subaru can vary depending on the extent of the issue, but it typically takes a few hours to a full day to diagnose and fix the problem.

9. Will resetting the OBDII code P0027 in my Subaru make it go away?

Resetting the OBDII code P0027 in your Subaru may temporarily clear the warning light, but the underlying issue causing the code will still need to be addressed to prevent it from reoccurring.

10. Is it safe to ignore OBDII code P0027 in my Subaru?

Ignoring OBDII code P0027 in a Subaru is not recommended, as it can lead to further engine problems and potentially leave you stranded if the issue worsens while driving.