Engine-CodesNissan – P1111 2003 Nissan Altima Sedan

P1111 2003 Nissan Altima Sedan Code - Intake Valve Timing Control Solenoid Valve Circuit Bank 1

Quick Answer

The P1111 diagnostic trouble code (DTC) for a 2003 Nissan Altima Sedan specifically refers to the Intake Valve Timing Control Solenoid Valve Circuit Bank 1. Common causes include Faulty intake valve timing control solenoid valve, Wiring or connector issues in the solenoid valve circuit, Low engine oil level or poor quality oil. 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 2003 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 or connector issues in the solenoid valve circuit, Low engine oil level or poor quality oil.
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.
Table of contents Created and updated by William Orellana on Sep 15, 2024
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Code P1111 2003 Nissan Altima Sedan Description

The P1111 diagnostic trouble code (DTC) for a 2003 Nissan Altima Sedan specifically refers to the Intake Valve Timing Control Solenoid Valve Circuit Bank 1. This code indicates a problem with the electrical circuit of the intake valve timing control solenoid valve in Bank 1 of the engine. The intake valve timing control solenoid valve is responsible for controlling the flow of oil to the intake camshaft, which in turn adjusts the timing of the intake valves. This precise timing is crucial for optimal engine performance, fuel efficiency, and emissions control.

OBDII Code P1111 2003 Nissan Altima Sedan - Intake Valve Timing Control Solenoid Valve Circuit Bank 1
P1111 2003 Nissan Altima Sedan Code - Intake Valve Timing Control Solenoid Valve Circuit Bank 1

Common Causes of P1111 2003 Nissan Altima Sedan

  1. Faulty intake valve timing control solenoid valve
  2. Wiring or connector issues in the solenoid valve circuit
  3. Low engine oil level or poor quality oil
  4. Engine control module (ECM) malfunction
  5. Mechanical problems with the intake camshaft

Symptoms of P1111 2003 Nissan Altima Sedan

  1. Rough idling
  2. Reduced engine power
  3. Hesitation or stalling
  4. Decreased fuel efficiency
  5. Increased emissions output

How to Fix P1111 2003 Nissan Altima Sedan

  1. Diagnose the issue by using a scan tool to confirm the P1111 code and inspecting the intake valve timing control solenoid valve and its circuit.
  2. Replace the faulty intake valve timing control solenoid valve if necessary.
  3. Check and repair any wiring or connector issues in the solenoid valve circuit.
  4. Ensure the engine oil level is adequate and of good quality.
  5. Reset the ECM and clear the DTC to see if the issue is resolved.

Cost to Fix P1111 2003 Nissan Altima Sedan

The typical repair costs for addressing the P1111 code on a 2003 Nissan Altima Sedan can range from $150 to $400, including parts and labor. However, 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's recommended to check with local auto repair shops for a more accurate estimate. Keep in mind that rates in metropolitan areas or at dealerships may be higher, while independent shops often charge less.

Tech Notes for P1111 2003 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 2003 Nissan Altima Sedan Code

1. What does the OBDII code P1111 indicate on a 2003 Nissan Altima Sedan?

The P1111 code in a 2003 Nissan Altima Sedan indicates that there is an issue with the Intake Valve Timing Control Solenoid Valve Circuit in Bank 1.

2. What are common symptoms of code P1111 in a 2003 Nissan Altima?

Common symptoms include a check engine light, rough engine idle, decreased fuel efficiency, and in some cases, the engine may exhibit a lack of power.

3. What causes the P1111 code to appear on a 2003 Nissan Altima?

Possible causes include a faulty intake valve timing control solenoid, dirty or clogged solenoid valves, wiring issues, or a bad connection in the solenoid valve circuit.

4. How can I fix the P1111 code in a 2003 Nissan Altima?

Repairing code P1111 can involve replacing the intake valve timing control solenoid, cleaning the solenoid if it's clogged, repairing any damaged wires or connectors, or ensuring proper solenoid operation through electrical testing.

5. Is it safe to drive a 2003 Nissan Altima with the P1111 code?

While you might be able to drive with this issue for a short period, it is recommended to address the problem promptly to avoid potential long-term engine damage or performance issues.

6. What tools are needed to diagnose the P1111 code on a 2003 Nissan Altima?

Diagnosing this code typically requires an OBDII scanner, a digital multimeter, and sometimes an oscilloscope to examine the solenoid's waveform output.

7. Can a faulty battery or charging system cause the P1111 code in a 2003 Nissan Altima?

While less common, electrical problems like a weak battery or faulty charging system can impact solenoid performance, potentially triggering the P1111 code.

8. What is the role of the intake valve timing control solenoid in a 2003 Nissan Altima?

The intake valve timing control solenoid adjusts the timing of the engine’s intake valves, enhancing engine performance, efficiency, and emissions control.

9. How often do intake valve timing control solenoids fail, leading to the P1111 code?

Solenoid failure isn’t extremely common but can occur due to normal wear and tear, especially in older or high-mileage vehicles like a 2003 model.

Discuss the causes and fixes for P1111 2003 Nissan Altima Sedan OBDII Code

  • Put a new timing chain on my 2003 nissan altima now car wont start p1111 code comes up any suggestions

  • Why did you change the timing chain? for the same problem? if you Altima didn't have any problem starting before, the timing it's probably wrong.

  • Took car to nissan and they told me it needed a new chain I lined up all the markings and still nothing . If the intake timing valve solenoid is bad would that cause it not to start?

  • The car wouldn't start before and nissan told me it was because timing was off.

  • The timing chain probably wasn't the problem and I never seen a faulty intake timing valve solenoid causing a no start problem.

  • Ok thank you I have been working on this for awhile now im good with cars but this one has me stumped . Nissan told me it was getting gas and spark and thats the only code that comes up so I was looking for help and that does help so I will keep investigating . Thanks!

  • my 2003 Nissan Altima is having the same problem and it brought up to code P 1111 what happens is when it starts you could drive it for hours and it runs real good but when you turn it off it won't start no more after sitting for a few hours and when I came to find out if it's because the cylinders flooded with gas so what you got to do is take all your spark plugs clean it out real good and it started all over again and I'll start we still have to change timing
    solenoid oh is that the problem