What does code P1140 mean?

Q: What does code P1140 mean?

Intake Valve Timing Control Position Sensor Bank 1. P1140 on Nissan vehicles indicates that the engine control module (ECM) has detected an implausible or missing signal from the intake valve timing control (VTC) position sensor on bank 1. The ECM uses this sensor to monitor the actual position of the intake camshaft phaser, and when the signal does not match commanded timing or falls outside expected parameters, the code is stored and the check engine light is illuminated.

DTC codes / Nissan codes / P1140

P1140 · NissanIntake Valve Timing Control Position Sensor Bank 1

P1140 on Nissan vehicles indicates that the engine control module (ECM) has detected an implausible or missing signal from the intake valve timing control (VTC) position sensor on bank 1. The ECM uses this sensor to monitor the actual position of the intake camshaft phaser, and when the signal does not match commanded timing or falls outside expected parameters, the code is stored and the check engine light is illuminated.

SystemPowertrain

Code typeNissan specific

SeverityMedium

Fix difficultyIntermediate

AreaFuel and air metering

Guidance is general and written for Nissan vehicles. Exact tests and values vary by model, so confirm the fault before replacing parts.