My code of P0014 tell me about the oil in my engine on 2005 Chevrolet Trailblazer

cam phaser solenoid valve and check the screens for a restriction

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1 answer
found a technical service bulletin on it.
TSB #010604052A -- ON-BOARD DIAGNOSTIC (OBD) SYSTEM IMPROVEMENTS - SERVICE ENGINE SOON LIGHT ON, DIAGNOSTIC TROUBLE CODE (DTC) P0014, P0116, OR P1683.