AutoCodes – Generic – P0027

P0027 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 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 27,430

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 Apr 04, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P0027 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 - Exhaust Valve Control solenoid Circuit Range/Performance Bank 1 - AutoCodes.com — P0027 Code - Exhaust Valve Control solenoid Circuit Range/Performance Bank 1

What does this mean?

What are the Possible Causes of the DTC P0027?

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?

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 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 code?

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

Need Help with the Code?

Get the P0027 code diagnosed by a professional: Find a repair shop in your area

Information for Specific Makes

P0027 Hyundai — Exhaust Valve Control Solenoid Circuit Range/Performance Bank 1
P0027 KIA — Exhaust Valve Control Solenoid Circuit Range/Performance Bank 1
P0027 Subaru — Exhaust Valve Control Solenoid Circuit Range/Performance Bank 1

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 Code

1. What are common symptoms of OBDII code P0027?

- Common symptoms include rough idling, decreased engine performance, engine misfires, and illuminated Check Engine Light.

2. What does OBDII code P0027 indicate?

- OBDII code P0027 indicates a malfunction in the Exhaust Valve Control solenoid Circuit Range/Performance in Bank 1 of the engine.

3. What are possible causes of OBDII code P0027?

- Possible causes include a faulty Exhaust Valve Control solenoid, wiring issues, low engine oil level, engine mechanical problems, or a malfunctioning Engine Control Module (ECM).

4. How can I diagnose the cause of OBDII code P0027?

- Diagnosing the issue may involve checking the Exhaust Valve Control solenoid for proper operation, inspecting wiring for damage, verifying engine oil levels, and using a diagnostic scanner to read live data from the ECM.

5. Can I continue driving with OBDII code P0027?

- It is not recommended to continue driving with OBDII code P0027 as it may lead to further engine damage and reduced performance. It is best to address the issue promptly.

6. How can I repair OBDII code P0027?

- Repairing OBDII code P0027 may involve replacing the faulty Exhaust Valve Control solenoid, repairing damaged wiring, ensuring proper engine oil levels, and resetting the ECM after the repair.

7. Are there any DIY tips for fixing OBDII code P0027?

- DIY tips include checking and cleaning electrical connectors, ensuring proper wire connections, and consulting the vehicle's service manual for specific repair procedures.

8. How much does it cost to fix OBDII code P0027 at a repair shop?

- The cost of fixing OBDII code P0027 at a repair shop can vary depending on the exact cause of the issue, but it may range from $150 to $500 including parts and labor.

9. Can a mechanic reset the Check Engine Light after fixing OBDII code P0027?

- Yes, a mechanic can reset the Check Engine Light after fixing OBDII code P0027 using a diagnostic scanner to clear the stored fault code in the ECM.

10. How often does OBDII code P0027 occur in vehicles?

- OBDII code P0027 is a relatively common issue in vehicles with variable valve timing systems, especially in older models or those with high mileage.