Mechanics

INFINITI INFINITY QX4 ENGINE PROBLEM

2000 Infiniti Infinity QX4 • 12,500 miles

Getting a "Service Engine Soon" light. Advanced Auto read a "P1140" code. What am I up against?
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Bubba2bees
November 20, 2012.



P1140 - Intake Valve Timing Control Position Sensor.

Most likely the Valve Timing solenoid is not functioning correctly causing the code to be triggerred. If engine is heavily sludged, remove the solenoid valve and clean it and its passages and retest.

KHLow2008
Nov 20, 2012.