Engine-Codes.com
Engine-Codes – Infiniti – P1105 Infiniti

P1105 Infiniti Code - Manifold Absolute Pressure/Barometric Pressure Switch Solenoid Valve

Quick Answer

The P1105 diagnostic trouble code for Infiniti vehicles refers to an issue with the Manifold Absolute Pressure/Barometric Pressure Switch Solenoid Valve. Common causes include Faulty solenoid in the pressure switch valve, Wiring issues or electrical connection problems, Vacuum leaks in the intake system. 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
P1105 Infiniti indicates Manifold Absolute Pressure/Barometric Pressure Switch Solenoid Valve.
Common causes
Common causes include Faulty solenoid in the pressure switch valve, Wiring issues or electrical connection problems, Vacuum leaks in the intake system.
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 Aug 30, 2024
💬 Need more help? Ask Auto Expert for instant answers — it's free!
AutoCodes App

Fix Your Car Smarter

Try the New AutoCodes App!

Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.

AutoCodes App on Google Play

Code P1105 Infiniti Description

The P1105 diagnostic trouble code for Infiniti vehicles refers to an issue with the Manifold Absolute Pressure/Barometric Pressure Switch Solenoid Valve. This valve is responsible for regulating the intake manifold pressure by adjusting the amount of air entering the engine. When this valve malfunctions, it can lead to incorrect pressure readings, affecting the engine's performance and overall efficiency.

OBDII Code P1105 Infiniti - Manifold Absolute Pressure/Barometric Pressure Switch Solenoid Valve
P1105 Infiniti Code - Manifold Absolute Pressure/Barometric Pressure Switch Solenoid Valve

Common Causes of P1105 Infiniti

  1. Faulty solenoid in the pressure switch valve
  2. Wiring issues or electrical connection problems
  3. Vacuum leaks in the intake system
  4. Clogged or dirty air filter
  5. Engine overheating causing damage to the valve

Symptoms of P1105 Infiniti

  1. Check engine light illuminated on the dashboard
  2. Rough idling or engine misfires
  3. Decreased fuel efficiency
  4. Hesitation or stalling during acceleration
  5. Reduced engine power

How to Fix P1105 Infiniti

  1. Perform a thorough diagnostic scan to confirm the P1105 trouble code
  2. Inspect the solenoid valve and wiring for any signs of damage or corrosion
  3. Check for vacuum leaks in the intake system and repair as necessary
  4. Replace the Manifold Absolute Pressure/Barometric Pressure Switch Solenoid Valve if it is found to be faulty
  5. Clear the trouble code and test drive the vehicle to ensure the issue has been resolved

Cost to Fix P1105 Infiniti

The typical repair costs for addressing a P1105 code in an Infiniti vehicle can range from $200 to $500, including parts and labor. However, the specific diagnosis time and labor rates at auto repair shops can vary based on factors such as location, vehicle make and model, and engine type. It is recommended to inquire about local rates for a more accurate estimate before proceeding with the repairs.

When is the Code Detected?

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

Need more information about the P1105 Infiniti code?

Need more information on how to fix the P1105 Infiniti code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P1105 Infiniti code diagnosed by a professional: Find a repair shop in your area

Information for Specific Infiniti Models

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 P1105 Infiniti Code

1. What are common symptoms of OBDII code P1105 in an Infiniti related to the Manifold Absolute Pressure/Barometric Pressure Switch Solenoid Valve?

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

2. What can cause OBDII code P1105 in an Infiniti?

- The code can be triggered by a faulty Manifold Absolute Pressure/Barometric Pressure Switch Solenoid Valve, wiring issues, or a problem with the engine control module.

3. How can I diagnose the cause of OBDII code P1105 in my Infiniti?

- A thorough inspection of the Manifold Absolute Pressure/Barometric Pressure Switch Solenoid Valve, checking the wiring for any damage, and testing the related circuits with a multimeter can help diagnose the issue.

4. Can I continue to drive my Infiniti with OBDII code P1105?

- It is not recommended to drive your vehicle with this code as it can lead to further engine damage and potential safety hazards. It's best to address the issue promptly.

5. How can I repair OBDII code P1105 in my Infiniti?

- Repairing this code may involve replacing the faulty Manifold Absolute Pressure/Barometric Pressure Switch Solenoid Valve, repairing any damaged wiring, or reprogramming the engine control module.

6. Are there any DIY tips for fixing OBDII code P1105 in an Infiniti?

- While some simple checks like inspecting the wiring connections can be done by DIY enthusiasts, it's recommended to seek professional help for accurate diagnosis and repair of this code.

7. How much does it typically cost to repair OBDII code P1105 in an Infiniti?

- Repair costs can vary depending on the extent of the issue, the need for parts replacement, and labor charges. On average, expect to pay a few hundred dollars for parts and labor.

8. Can a dirty air filter cause OBDII code P1105 in an Infiniti?

- While a dirty air filter can impact engine performance, it is unlikely to directly trigger OBDII code P1105. Focus on checking the Manifold Absolute Pressure/Barometric Pressure Switch Solenoid Valve and related components for this particular code.

9. Will resetting the OBDII system clear code P1105 in an Infiniti?

- Resetting the system may temporarily clear the code, but if the underlying issue with the Manifold Absolute Pressure/Barometric Pressure Switch Solenoid Valve is not addressed, the code is likely to reappear.

10. How long does it take to fix OBDII code P1105 in an Infiniti?

- The repair time can vary based on the exact cause of the code and the availability of parts. In general, it can take a few hours to a full day to diagnose and repair OBDII code P1105.

Discuss the causes and fixes for P1105 Infiniti OBDII Code

Submit a New Comment

  • 1997 Infiniti I 20 hessitation on starts from stops after it's warm. I get a code for the knock sensor but have already replaced

    Reply to Comment

  • Do you mean Infiniti I30? there is no I20.

    The P1105 code it's not common at all on the I30. You could start by checking the valve connections. If the valve connections are OK you should replace the valve.

    Reply to Comment

  • Thank you, yes an I 30

    Reply to Comment