P1140 – Infiniti DTC

Infiniti DTC P1140 – Intake Valve Timing Control Position Sensor (Left Bank)

DTC P1140 meaning on Infiniti

The DTC P1140 on an Infiniti indicates an issue with the Intake Valve Timing Control Position Sensor on the left bank of the engine. This sensor is responsible for monitoring the position of the intake valve timing control.

Infiniti DTC P1140 symptoms

Symptoms of DTC P1140 on an Infiniti may include:

• Check Engine Light illuminated
• Decreased engine performance
• Engine misfires
• Rough idling

Infiniti DTC P1140 causes

Common causes of DTC P1140 on an Infiniti include:

• Faulty Intake Valve Timing Control Position Sensor
• Wiring issues in the sensor circuit
• Engine timing chain problems

Infiniti DTC P1140 seriousness

The seriousness of DTC P1140 on an Infiniti depends on the underlying cause. Ignoring this issue can lead to further engine problems and potential damage if not addressed promptly.

How to diagnose DTC P1140 on Infiniti

To diagnose DTC P1140 on an Infiniti, you can:

1. Use an OBD-II scanner to retrieve the trouble codes
2. Inspect the Intake Valve Timing Control Position Sensor and its wiring for any visible damage
3. Check the engine timing chain for proper alignment

How to fix DTC P1140 on Infiniti

To fix DTC P1140 on an Infiniti, you may need to:

1. Replace the Intake Valve Timing Control Position Sensor
2. Repair any damaged wiring in the sensor circuit
3. Inspect and potentially replace the engine timing chain if necessary

How to erase DTC P1140 on Infiniti

To erase DTC P1140 on an Infiniti, you can:

1. Use an OBD-II scanner to clear the trouble codes
2. After fixing the underlying issue, drive the vehicle to allow the system to retest and verify the repair