AutoCodes – Generic – P0028

P0028 Code - Intake valve Control Solenoid Circuit Range/Performance Bank 2

Quick Answer

The Continuously Variable Valve Timing (CVVT) system is installed to the chain sprocket of the intake camshaft. Common causes include Dirty engine oil, Low engine oil level, Faulty intake 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: P0028 indicates Intake valve Control Solenoid Circuit Range/Performance Bank 2.
Common causes: Common causes include Dirty engine oil, Low engine oil level, Faulty intake 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 21,482

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 P0028 Description

The Continuously Variable Valve Timing (CVVT) system is installed to the chain sprocket of the intake camshaft. This system controls the intake 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 P0028 - Intake valve Control Solenoid Circuit Range/Performance Bank 2 - AutoCodes.com — P0028 Code - Intake valve Control Solenoid Circuit Range/Performance Bank 2

What does this mean?

What are the Possible Causes of the DTC P0028?

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

How to Fix the DTC P0028?

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 P0028 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 P0028 code?

Need more information on how to fix the P0028 code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P0028 code diagnosed by a professional: Find a repair shop in your area

Information for Specific Makes

P0028 Ford — Intake valve Control Solenoid Circuit Range/Performance Bank 2
P0028 Hyundai — Intake Valve Control Solenoid Circuit Range/Performance Bank 2
P0028 KIA — Intake Valve Control Solenoid Circuit Range/Performance Bank 2
P0028 Subaru — Intake Valve Control Solenoid Circuit Range/Performance Bank 2

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 P0028 Code

1. What are the common symptoms of OBDII code P0028?

- Common symptoms include rough idling, decreased engine performance, engine stalling, and illuminated Check Engine light.

2. What are the possible causes of OBDII code P0028?

- Possible causes include a faulty intake valve control solenoid, wiring issues, low engine oil levels, clogged oil passages, or a timing chain/belt problem.

3. How can I diagnose the OBDII code P0028?

- Diagnosis involves using a scan tool to retrieve the code, checking the intake valve control solenoid for proper operation, inspecting related wiring for damage, and verifying engine oil levels.

4. Can a clogged oil filter cause OBDII code P0028?

- Yes, a clogged oil filter can restrict oil flow to the intake valve control solenoid, potentially triggering code P0028.

5. What is the recommended repair for OBDII code P0028?

- The recommended repair typically involves replacing the faulty intake valve control solenoid, addressing any wiring issues, and ensuring proper engine oil levels and quality.

6. Can I drive my vehicle with OBDII code P0028?

- It is not recommended to drive the vehicle with code P0028, as it can lead to further engine damage and potential safety hazards. Immediate attention is advised.

7. How much does it cost to repair OBDII code P0028?

- The cost of repair can vary depending on the underlying issue, parts needed, and labor rates. It is advisable to consult a professional mechanic for an accurate estimate.

8. Will resetting the Check Engine light resolve OBDII code P0028?

- Resetting the Check Engine light may temporarily clear the code, but the underlying issue causing P0028 will still need to be addressed to prevent further problems.

9. Can a DIY enthusiast fix OBDII code P0028?

- Depending on the individual's skill level and access to tools, some DIY enthusiasts may be able to address code P0028 by replacing the intake valve control solenoid and checking related components.

10. How soon should I address OBDII code P0028 once detected?

- It is recommended to address code P0028 as soon as possible to prevent potential engine damage and ensure the vehicle's optimal performance and safety.