so the check engine light came up on my truck and I scanned it to find P0021 which is Intake camshaft over advance or VCT solenoid stuck open. I really doubt my truck skipped timing and all the research I've found had it linked with other codes requiring cam phasers. Has anyone had this problem or have a solution?

The truck is a 2008 F150XL with the 5.4 Triton with 90k on it

 

Plug your DTC into the SEARCH box and read the previous threads about it.