I have an 07 with 315000 miles. Truck runs great and doesn’t use much oil. I have a p0345 code. It started getting poor gas mileage like 1.4 to 2.6 mpg according to dash. There’s been no change in the way the engine feels or runs just get the mileage of a top fuel dragster. Any help is appreciated . Thank you.

 

Your DTC points to the VCT solenoid bank 2.