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P1078 2005 Infiniti G35 Code - Exhaust Valve Timing Control Position Sensor Bank 1 Circuit

Quick Answer

The P1078 code on a 2005 Infiniti G35 relates to the Exhaust Valve Timing Control Position Sensor Bank 1 Circuit. Common causes include Faulty Sensor: The most common cause of the P1078 code is a faulty exhaust valve timing control position sensor, Wiring Issues: Damaged or corroded wiring connecting the sensor to the ECM can also trigger this code, Sensor Alignment: Improper sensor alignment or installation can lead to inaccurate readings and trigger the code. 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
P1078 2005 Infiniti G35 indicates Exhaust Valve Timing Control Position Sensor Bank 1 Circuit.
Common causes
Common causes include Faulty Sensor: The most common cause of the P1078 code is a faulty exhaust valve timing control position sensor, Wiring Issues: Damaged or corroded wiring connecting the sensor to the ECM can also trigger this code, Sensor Alignment: Improper sensor alignment or installation can lead to inaccurate readings and trigger the code.
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.
What is this?
Table of contents Created and updated by William Orellana on Sep 10, 2024
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Code P1078 2005 Infiniti G35 Description

The P1078 code on a 2005 Infiniti G35 relates to the Exhaust Valve Timing Control Position Sensor Bank 1 Circuit. This means that there is an issue with the sensor responsible for monitoring the position of the exhaust valve timing control in the engine's bank 1. The exhaust valve timing control system plays a crucial role in optimizing engine performance, fuel efficiency, and emissions. The sensor helps ensure that the timing of the exhaust valve is precisely controlled to maximize engine efficiency and reduce harmful emissions.

OBDII Code P1078 2005 Infiniti G35 - Exhaust Valve Timing Control Position Sensor Bank 1 Circuit
P1078 2005 Infiniti G35 Code - Exhaust Valve Timing Control Position Sensor Bank 1 Circuit

Common Causes of P1078 2005 Infiniti G35

  1. Faulty Sensor: The most common cause of the P1078 code is a faulty exhaust valve timing control position sensor.
  2. Wiring Issues: Damaged or corroded wiring connecting the sensor to the ECM can also trigger this code.
  3. Sensor Alignment: Improper sensor alignment or installation can lead to inaccurate readings and trigger the code.
  4. ECM Malfunction: A malfunctioning engine control module may also be the cause of the issue.

Symptoms of P1078 2005 Infiniti G35

  1. Check Engine Light: The most obvious symptom of the P1078 code is the illumination of the Check Engine Light on the dashboard.
  2. Reduced Engine Performance: The engine may exhibit poor acceleration, reduced power output, and rough idling due to incorrect exhaust valve timing.
  3. Decreased Fuel Efficiency: A malfunctioning exhaust valve timing control sensor can lead to decreased fuel efficiency as the engine may not be operating at its optimal performance level.
  4. Engine Misfires: In severe cases, the engine may misfire or stall, especially during acceleration or idle, due to incorrect valve timing.

How to Fix P1078 2005 Infiniti G35

  1. Diagnose the Issue: Use an OBD-II scanner to retrieve the specific code and identify the underlying cause of the problem.
  2. Inspect Sensor and Wiring: Check the exhaust valve timing control position sensor and its wiring for any visible damage or corrosion.
  3. Replace Sensor: If the sensor is faulty, replace it with a new one and ensure proper alignment during installation.
  4. Clear Codes: After replacing the sensor, clear the diagnostic trouble codes from the ECM to reset the system.
  5. Test Drive: Take the vehicle for a test drive to ensure that the issue has been resolved and that the engine is operating correctly.

Cost to Fix P1078 2005 Infiniti G35

The typical repair costs for addressing the P1078 code on a 2005 Infiniti G35 can range from $200 to $500, including parts and labor. However, it's essential to note that the actual cost may vary depending on the location, the specific diagnosis time, and labor rates at auto repair shops. Rates can range from $80 to $150 per hour, with higher rates in metropolitan areas or at dealerships and lower rates at independent shops. It's recommended to obtain quotes from local auto repair shops for a more accurate estimate of the repair costs.

When is the Code Detected?

An excessively high or low voltage from the sensor is sent to Engine Control Module (ECM).

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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 P1078 2005 Infiniti G35 Code

1. What are common symptoms of OBDII code P1078 in a 2005 Infiniti G35?

- Common symptoms include rough idling, decreased fuel efficiency, and a noticeable decrease in engine performance.

2. What does the OBDII code P1078 in a 2005 Infiniti G35 indicate?

- The code P1078 indicates a problem with the Exhaust Valve Timing Control Position Sensor Bank 1 Circuit.

3. What are possible causes of OBDII code P1078 in a 2005 Infiniti G35?

- Possible causes include a faulty exhaust valve timing control position sensor, wiring issues, or a problem with the engine control module.

4. How can I diagnose the issue causing OBDII code P1078 in my 2005 Infiniti G35?

- Diagnosing the issue typically involves using a scan tool to retrieve the code, checking the sensor's wiring and connectors, and testing the sensor itself for proper functionality.

5. Can I continue driving my 2005 Infiniti G35 with OBDII code P1078?

- It is not recommended to continue driving with this code present, as it can lead to further engine damage and decreased performance.

6. How can I repair OBDII code P1078 in my 2005 Infiniti G35?

- Repair options include replacing the faulty exhaust valve timing control position sensor, repairing any damaged wiring, or reprogramming the engine control module.

7. Is it possible to reset OBDII code P1078 in a 2005 Infiniti G35 without fixing the underlying issue?

- While you can clear the code with a scan tool, it will likely reappear if the underlying issue is not addressed.

8. How much does it typically cost to repair OBDII code P1078 in a 2005 Infiniti G35?

- The cost of repairs can vary depending on the specific cause of the code, but it may range from $200 to $500 for parts and labor.

9. Are there any DIY tips for troubleshooting OBDII code P1078 in a 2005 Infiniti G35?

- DIY tips include checking the sensor's wiring for damage, ensuring proper sensor connections, and consulting the vehicle's service manual for specific diagnostic procedures.

10. Can a professional mechanic help diagnose and repair OBDII code P1078 in a 2005 Infiniti G35?

- Yes, a qualified mechanic with experience in diagnosing and repairing engine codes can efficiently address the issue and ensure proper repairs are made.

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