AutoCodes – Generic – P0084

P0084 Code - Exhaust Valve Control Solenoid Circuit 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: P0084 indicates Exhaust Valve Control Solenoid Circuit 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 16,780

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
FAQs
Comments
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Code P0084 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 P0084 - Exhaust Valve Control Solenoid Circuit Bank 2 - AutoCodes.com — P0084 Code - Exhaust Valve Control Solenoid Circuit Bank 2

What does this mean?

What are the Possible Causes of the DTC P0084?

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 P0084?

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 P0084 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 P0084 code?

Need more information on how to fix the P0084 code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P0084 code diagnosed by a professional: Find a repair shop in your area

Information for Specific Makes

P0084 Infiniti — Exhaust Valve Timing Control Magnet Retarder Circuit Bank 2
P0084 KIA — Exhaust Valve Timing Control Magnet Retarder Circuit Bank 2
P0084 Nissan — Exhaust Valve Timing Control Magnet Retarder Circuit 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 P0084 Code

1. What are the common symptoms of OBDII code P0084?

- Common symptoms include rough idling, engine misfires, lack of power, and illuminated Check Engine Light.

2. What does the OBDII code P0084 indicate?

- OBDII code P0084 indicates a problem with the Exhaust Valve Control Solenoid Circuit in Bank 2 of the engine.

3. What are the possible causes of OBDII code P0084?

- Possible causes include a faulty exhaust valve control solenoid, damaged wiring or connectors, or a malfunctioning engine control module (ECM).

4. How can I diagnose the issue related to OBDII code P0084?

- To diagnose the issue, you can use an OBDII scanner to retrieve the code, visually inspect the wiring and connectors, and test the exhaust valve control solenoid for proper operation.

5. Is it safe to drive with OBDII code P0084 present?

- It is not recommended to drive with OBDII code P0084 present, as it can lead to poor engine performance and potential damage if left unresolved.

6. How can I repair OBDII code P0084?

- Repairing OBDII code P0084 may involve replacing the faulty exhaust valve control solenoid, repairing damaged wiring or connectors, or reprogramming the engine control module.

7. Can a DIY enthusiast fix OBDII code P0084?

- DIY enthusiasts with knowledge of automotive repair and access to necessary tools may be able to fix OBDII code P0084, but it is recommended to consult a professional mechanic for accurate diagnosis and repair.

8. How much does it cost to repair OBDII code P0084?

- The cost to repair OBDII code P0084 can vary depending on the extent of the issue, labor rates, and the cost of replacement parts. It is advisable to obtain quotes from different repair shops for an accurate estimate.

9. Will resetting the Check Engine Light resolve OBDII code P0084?

- Resetting the Check Engine Light may temporarily turn off the light, but it will not resolve the underlying issue causing OBDII code P0084. The problem should be diagnosed and repaired to prevent further issues.

10. How often does OBDII code P0084 occur in vehicles?

- OBDII code P0084 is not as common as some other codes, but it can still occur in vehicles with exhaust valve control solenoid circuit issues, particularly in newer models with advanced engine control systems.