AutoCodes – Generic – P0086

P0086 Code - Exhaust Valve Control Solenoid Circuit High Bank 2

Quick Answer

Exhaust valve timing control magnet retarder controls the shut/open timing of the exhaust valve by ON/OFF pulse duty signals sent from the Engine Control Module (ECM). Common causes include Faulty Intake Valve Control Solenoid Valve, Intake Valve Control Solenoid Valve harness is open or shorted, Intake Valve Control Solenoid Valve circuit poor electrical connection. 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: P0086 indicates Exhaust Valve Control Solenoid Circuit High Bank 2.
Common causes: Common causes include Faulty Intake Valve Control Solenoid Valve, Intake Valve Control Solenoid Valve harness is open or shorted, Intake Valve Control Solenoid Valve circuit poor electrical connection.
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 15,615

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 May 17, 2021

Description
Possible Causes
How To Fix
Cost to Diagnose
Comments
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Code P0086 Description

Exhaust valve timing control magnet retarder controls the shut/open timing of the exhaust valve by ON/OFF pulse duty signals sent from the Engine Control Module (ECM). The longer pulse width retards valve angle. The shorter pulse width advances valve angle.

OBDII Code P0086 - Exhaust Valve Control Solenoid Circuit High Bank 2 - AutoCodes.com — P0086 Code - Exhaust Valve Control Solenoid Circuit High Bank 2

What does this mean?

What are the Possible Causes of the DTC P0086?

Faulty Intake Valve Control Solenoid Valve
Intake Valve Control Solenoid Valve harness is open or shorted
Intake Valve Control Solenoid Valve circuit poor electrical connection

How to Fix the DTC P0086?

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 P0086 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 P0086 code?

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Need Help with the Code?

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Information for Specific Makes

P0086 KIA — Exhaust Valve Control Solenoid Circuit High 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.