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P1111 2003 Infiniti G35 Code - Intake Valve Timing Control Solenoid Valve Circuit Bank 1

- Code Popularity: 4,887 Views
- Repair Importance Level: 3/3
- Repair Difficulty Level: 2/3
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What are the Possible Causes of the DTC P1111 2003 Infiniti G35?

NOTE: The causes shown may not be a complete list of all potential problems, and it is possible that there may be other causes.
  • 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
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How to Fix the DTC P1111 2003 Infiniti G35?

Review the 'Possible Causes' mentioned above and visually examine the corresponding wiring harness and connectors. Ensure to check for any damaged components and inspect the connector pins for signs of being broken, bent, pushed out, or corroded.

Code Tech Notes

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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What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P1111 2003 Infiniti G35 code, it typically requires 1.0 hour of labor. The specific diagnosis time and labor rates at auto repair shops can differ based on factors such as the location, make and model of the vehicle, and even the engine type. It is common for most auto repair shops to charge between $75 and $150 per hour.

What are Code Possible Symptoms?

  • Engine Light ON (or Service Engine Soon Warning Light)
  • Engine Lack / Loss of Power
  • Engine Rough Idle

Code P1111 2003 Infiniti G35 Description

The intake valve timing control solenoid valve is activated by ON/OFF pulse duty (ratio) signals from the Engine Control Module (ECM). The intake valve timing control solenoid valve changes the oil amount and direction of flow through the intake valve timing control unit or stops oil flow.
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.

OBDII Code P1111 2003 Infiniti G35 - Intake Valve Timing Control Solenoid Valve Circuit Bank 1 - AutoCodes.com
P1111 2003 Infiniti G35 Code - Intake Valve Timing Control Solenoid Valve Circuit Bank 1

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