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Engine-Codes – Nissan – P1111 2002 Nissan Altima Sedan

P1111 2002 Nissan Altima Sedan Code - Intake Valve Timing Control Solenoid Valve Circuit Bank 1

Quick Answer

The P1111 diagnostic trouble code (DTC) for a 2002 Nissan Altima Sedan indicates a problem with the Intake Valve Timing Control Solenoid Valve Circuit in Bank 1. Common causes include Faulty intake valve timing control solenoid valve, Wiring issues in the solenoid circuit, Low engine oil level or pressure. 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
P1111 2002 Nissan Altima Sedan indicates Intake Valve Timing Control Solenoid Valve Circuit Bank 1.
Common causes
Common causes include Faulty intake valve timing control solenoid valve, Wiring issues in the solenoid circuit, Low engine oil level or pressure.
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 11, 2024
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Code P1111 2002 Nissan Altima Sedan Description

The P1111 diagnostic trouble code (DTC) for a 2002 Nissan Altima Sedan indicates a problem with the Intake Valve Timing Control Solenoid Valve Circuit in Bank 1. This code points to an issue with the solenoid valve that controls the timing of the intake valve in the engine's combustion process. The solenoid valve is responsible for regulating the flow of oil to the intake valve timing control mechanism, which in turn adjusts the timing of the intake valve opening and closing.

OBDII Code P1111 2002 Nissan Altima Sedan - Intake Valve Timing Control Solenoid Valve Circuit Bank 1
P1111 2002 Nissan Altima Sedan Code - Intake Valve Timing Control Solenoid Valve Circuit Bank 1

Common Causes of P1111 2002 Nissan Altima Sedan

  1. Faulty intake valve timing control solenoid valve
  2. Wiring issues in the solenoid circuit
  3. Low engine oil level or pressure
  4. Clogged oil passage
  5. Electrical problems in the engine control module (ECM)

Symptoms of P1111 2002 Nissan Altima Sedan

  1. Rough idling or engine misfires
  2. Reduced engine performance or power output
  3. Hesitation or stalling during acceleration
  4. Increased fuel consumption
  5. Illumination of the check engine light

How to Fix P1111 2002 Nissan Altima Sedan

  1. Begin by conducting a thorough diagnosis using a scan tool to confirm the P1111 code and identify the specific issue.
  2. Inspect the intake valve timing control solenoid valve and wiring for any damage or corrosion. Replace any faulty components.
  3. Check the engine oil level and pressure to ensure proper lubrication to the intake valve timing control mechanism.
  4. Clear the diagnostic trouble codes and reset the engine control module to see if the issue recurs.
  5. Test drive the vehicle to verify that the symptoms have been resolved and the check engine light does not reappear.

Cost to Fix P1111 2002 Nissan Altima Sedan

The typical repair costs for addressing a P1111 code on a 2002 Nissan Altima Sedan can range from $150 to $400, including parts and labor. The cost may vary based on the specific cause of the issue, the price of replacement components, and the labor rates at the auto repair shop. It is advisable to consult with a trusted mechanic to receive a more accurate estimate based on the vehicle's condition and location. Keep in mind that diagnostic time and labor rates can fluctuate depending on various factors, so it is essential to inquire about the specific costs beforehand.

What does this mean?

Tech Notes for P1111 2002 Nissan Altima Sedan

Since the Intake valve timing control solenoid valve uses oil flow to control timing, dirty oil can cause the valve to stuck open or close. Before replacing the valve, change the engine oil and filter and reset the engine code. If the code comes back you can remove the Intake valve timing control solenoid and clean it with brake cleaner.

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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 P1111 2002 Nissan Altima Sedan Code

What does the OBDII code P1111 mean on a 2002 Nissan Altima Sedan?

P1111 indicates an issue with the Intake Valve Timing Control Solenoid Valve Circuit on Bank 1, which affects the engine's variable valve timing system.

What are the symptoms of the P1111 code on a 2002 Nissan Altima?

Common symptoms include poor engine performance, rough idling, reduced fuel efficiency, and the Check Engine Light being illuminated.

What causes the P1111 code on a 2002 Nissan Altima?

Possible causes include a faulty intake valve timing control solenoid, damaged wiring or connectors in the solenoid circuit, or low engine oil levels or quality.

Can low oil levels cause the P1111 code to appear?

Yes, low or dirty oil can prevent the intake valve timing control solenoid from functioning properly, triggering the P1111 code.

How can I diagnose the P1111 code on my 2002 Nissan Altima?

Diagnose the issue by using an OBDII scanner to confirm the code, inspecting the solenoid and its wiring for damage, and checking the engine oil level and condition.

How do I fix the P1111 code on a 2002 Nissan Altima?

Repairs may include replacing the intake valve timing control solenoid, repairing damaged wiring or connectors, or performing an oil change with the correct grade of oil.

Is it safe to drive with the P1111 code active?

While the car may still be drivable, driving with this code can lead to reduced performance and possible long-term engine damage if not addressed promptly.

How much does it cost to repair the P1111 code on a 2002 Nissan Altima?

The cost can vary, but replacing the intake valve timing control solenoid typically ranges from $150 to $300, including parts and labor.

Can I fix the P1111 code myself?

If you're comfortable with basic car repairs, you can replace the solenoid or repair wiring yourself, but proper diagnosis is essential before attempting any fix.

What tools do I need to address the P1111 code?

You'll need an OBDII scanner, basic hand tools for removing the solenoid, and possibly a multimeter for testing electrical connections.

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