AutoCodes – KIA – P0028 KIA

P0028 KIA 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 KIA 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 11,247

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 P0028 KIA 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 KIA - Intake Valve Control Solenoid Circuit Range/Performance Bank 2 - AutoCodes.com — P0028 KIA Code - Intake Valve Control Solenoid Circuit Range/Performance Bank 2

What does this mean?

What are the Possible Causes of the DTC P0028 KIA?

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 KIA?

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 KIA 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.

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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 P0028 KIA Code

1. What does the OBDII code P0028 mean in a Kia?

P0028 indicates an issue with the Intake Valve Control Solenoid Circuit Range/Performance on Bank 2, meaning the engine control module (ECM) detects a problem in the variable valve timing system.

2. What are the common symptoms of the P0028 code in a Kia?

Symptoms may include rough idling, reduced fuel efficiency, poor engine performance, hesitation during acceleration, or the Check Engine Light turning on.

3. What causes the P0028 code in a Kia?

Common causes include a faulty intake valve control solenoid, low engine oil levels, dirty or contaminated oil, wiring or connector issues in the solenoid circuit, or a defective ECM.

4. Can low oil levels trigger the P0028 code?

Yes, low or dirty engine oil can affect the variable valve timing system, causing the P0028 code to appear.

5. How can I diagnose the P0028 code in my Kia?

Start by checking the engine oil level and condition, inspecting the intake valve control solenoid and its wiring for damage, and using a scan tool to monitor the solenoid operation.

6. Is it safe to drive a Kia with the P0028 code?

Driving with the P0028 code is not recommended, as it may lead to reduced performance, further engine damage, or increased fuel consumption.

7. How do I fix the P0028 code on a Kia?

Repairs may include replacing the intake valve control solenoid, changing the engine oil and filter, repairing wiring or connectors, or cleaning out sludge from the variable valve timing system.

8. How much does it cost to fix a P0028 code on a Kia?

Repair costs vary depending on the issue, but replacing the intake valve control solenoid typically costs between $100 and $300, including parts and labor.

9. Can a dirty intake valve control solenoid cause the P0028 code?

Yes, a clogged or dirty solenoid can restrict oil flow, leading to improper valve timing and triggering the P0028 code.

10. How can I prevent the P0028 code from appearing in my Kia?

Regularly change the engine oil and filter, use the recommended oil type, and inspect the solenoid and wiring during routine maintenance.

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