AutoCodes – Infiniti – P0078 2006 Infiniti G35

P0078 2006 Infiniti G35 Code - Exhaust Valve Timing Control Magnet Retarder Circuit Bank 1

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 Exhaust Valve Timing Control Magnet Retarder, Exhaust Valve Timing Control Magnet Retarder harness is open or shorted, Exhaust Valve Timing Control Magnet Retarder circuit poor electrical circuit connector. 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: P0078 2006 Infiniti G35 indicates Exhaust Valve Timing Control Magnet Retarder Circuit Bank 1.
Common causes: Common causes include Faulty Exhaust Valve Timing Control Magnet Retarder, Exhaust Valve Timing Control Magnet Retarder harness is open or shorted, Exhaust Valve Timing Control Magnet Retarder circuit poor electrical circuit connector.
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 10,598

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 Oct 25, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P0078 2006 Infiniti G35 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 P0078 2006 Infiniti G35 - Exhaust Valve Timing Control Magnet Retarder Circuit Bank 1 - AutoCodes.com — P0078 2006 Infiniti G35 Code - Exhaust Valve Timing Control Magnet Retarder Circuit Bank 1

What does this mean?

What are the Possible Causes of the DTC P0078 2006 Infiniti G35?

Faulty Exhaust Valve Timing Control Magnet Retarder
Exhaust Valve Timing Control Magnet Retarder harness is open or shorted
Exhaust Valve Timing Control Magnet Retarder circuit poor electrical circuit connector

How to Fix the DTC P0078 2006 Infiniti G35?

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 P0078 2006 Infiniti G35 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 P0078 2006 Infiniti G35 code?

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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 P0078 2006 Infiniti G35 Code

1. What are the common symptoms of OBDII code P0078 in a 2006 Infiniti G35?

The common symptoms of code P0078 include rough idling, loss of power, decreased fuel efficiency, and illuminated Check Engine Light.

2. What does the OBDII code P0078 on a 2006 Infiniti G35 mean?

The code P0078 indicates a malfunction in the Exhaust Valve Timing Control Magnet Retarder Circuit on Bank 1 of the engine.

3. What are the possible causes of OBDII code P0078 in a 2006 Infiniti G35?

Possible causes of code P0078 include a faulty exhaust valve timing control magnet, wiring issues, poor electrical connection, or a malfunctioning engine control module (ECM).

4. How can I diagnose OBDII code P0078 on my 2006 Infiniti G35?

Diagnosing code P0078 involves visually inspecting the wiring and connections, testing the exhaust valve timing control magnet, and using a scan tool to check the ECM for any fault codes.

5. Can I continue driving my 2006 Infiniti G35 with OBDII code P0078?

It is not recommended to drive your vehicle with an active P0078 code, as it can lead to further engine damage and decreased performance. It is best to address the issue promptly.

6. How can I repair OBDII code P0078 on my 2006 Infiniti G35?

Repairing code P0078 may involve replacing the faulty exhaust valve timing control magnet, repairing any damaged wiring or connections, or reprogramming the ECM.

7. Will resetting the Check Engine Light resolve OBDII code P0078 in my 2006 Infiniti G35?

Simply resetting the Check Engine Light will not fix the underlying issue causing code P0078. It is important to diagnose and repair the root cause of the problem.

8. How much does it cost to fix OBDII code P0078 on a 2006 Infiniti G35?

The cost of fixing code P0078 can vary depending on the exact cause of the issue. It is recommended to consult a professional mechanic for an accurate diagnosis and repair estimate.

9. Can a DIY enthusiast fix OBDII code P0078 on a 2006 Infiniti G35?

While some aspects of diagnosing and repairing code P0078 can be done by a DIY enthusiast, it is recommended to seek help from a qualified mechanic for complex issues or if you are unsure about the repair process.

10. How often does OBDII code P0078 occur in a 2006 Infiniti G35?

Code P0078 is not a common code in most vehicles, including the 2006 Infiniti G35. If you encounter this code, it is important to address it promptly to avoid potential engine problems.