MY 2006 CHLYSLER C300 KEEP GETTING P1521!!WHY?

Question

I HAVE CHANGED THE OIL AND FILTER TO THE ONE FROM THE DEALER, I HAVE CLEANED THE THROTTLE AND CHANGE THE SPARK PLUGS BUT I STILL GET THIS CODE AFTER I ERASE IT FROM MY OBDII.

Answer 1

P1521- means wrong oil was used. maybe to thin or thick. It requires 5W20 oil

Comments

The oil i used is the one i bought from our dealer!! could it be something else beside the oil? or could it be it is old oil? what could it be?

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Could be the intake valve solenoid, but before replacing the valve, start by changing the engine oil. For your Chrysler C300 the factory recommends 5W-20