P1111 2004 Infiniti G35 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 2004 Infiniti G35 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 2004 Infiniti G35 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 2004 Infiniti G35?
- 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 2004 Infiniti G35?
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 2004 Infiniti G35 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 2004 Infiniti G35 Code
1. What does the OBDII code P1111 mean on a 2004 Infiniti G35?
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.
2. What are common symptoms of code P1111 on a 2004 Infiniti G35?
Symptoms may include poor engine performance, rough idling, decreased fuel efficiency, and the Check Engine Light being illuminated.
3. What causes the P1111 code on a 2004 Infiniti G35?
Common causes include a faulty intake valve timing control solenoid, damaged or corroded wiring, a malfunctioning ECU, or low engine oil levels.
4. How does the intake valve timing control solenoid work?
This solenoid adjusts the timing of the intake valves to optimize engine performance and efficiency based on driving conditions.
5. Can low engine oil cause the P1111 code on a 2004 Infiniti G35?
Yes, low or dirty engine oil can affect the solenoid's performance, leading to the P1111 code.
6. How can you diagnose the P1111 code on a 2004 Infiniti G35?
Diagnosis typically involves checking the solenoid's electrical connections, testing the solenoid for proper operation, inspecting wiring for damage, and ensuring adequate engine oil levels.
7. How do you fix the P1111 code on a 2004 Infiniti G35?
Repairs may include replacing the intake valve timing control solenoid, repairing damaged wiring, cleaning electrical connections, or performing an oil change.
8. Can you drive with the P1111 code on a 2004 Infiniti G35?
While the vehicle may still run, driving with this code can lead to poor performance and potential long-term engine damage if not addressed.
9. How much does it cost to repair the P1111 code on a 2004 Infiniti G35?
Repair costs can vary, but replacing the solenoid typically ranges from $150 to $300, including parts and labor.
10. Is the P1111 code specific to Bank 1 on a 2004 Infiniti G35?
Yes, Bank 1 refers to the side of the engine with cylinder 1, and the code specifically pertains to the solenoid circuit on that side.
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