P1111 2003 Nissan Altima Sedan Code - Intake Valve Timing Control Solenoid Valve Circuit Bank 1
Quick Answer
The intake valve timing control solenoid valve is activated by ON/OFF pulse duty (ratio) signals from the Engine Control Module (ECM). Common causes include Faulty Intake Valve Timing Control Solenoid Valve Bank 1, Intake Valve Timing Control Solenoid Valve Bank 1 harness is open or shorted, Intake Valve Timing Control Solenoid Valve Bank 1 circuit poor electrical connection. 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 Bank 1, Intake Valve Timing Control Solenoid Valve Bank 1 harness is open or shorted, Intake Valve Timing Control Solenoid Valve Bank 1 circuit poor electrical connection.
- 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.
Code P1111 2003 Nissan Altima Sedan Description
The longer pulse width advances the valve angle. The shorter pulse width retards the valve angle.
When ON and OFF pulse widths become equal, the solenoid valve stops oil pressure flow to fix the intake valve angle at the control position.
The Diagnostic Trouble Code (DTC) when an improper voltage is sent to the ECM through the intake valve timing control solenoid valve.
What are the Possible Causes of the DTC P1111 2003 Nissan Altima Sedan?
- Faulty Intake Valve Timing Control Solenoid Valve Bank 1
- Intake Valve Timing Control Solenoid Valve Bank 1 harness is open or shorted
- Intake Valve Timing Control Solenoid Valve Bank 1 circuit poor electrical connection
How to Fix the DTC P1111 2003 Nissan Altima Sedan?
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.
Code Tech Notes
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the P1111 2003 Nissan Altima Sedan 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.
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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
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Put a new timing chain on my 2003 nissan altima now car wont start p1111 code comes up any suggestions
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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.
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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?
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The car wouldn't start before and nissan told me it was because timing was off.
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The timing chain probably wasn't the problem and I never seen a faulty intake timing valve solenoid causing a no start problem.
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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!
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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
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