I have noticed that if I get on the throttle, hard and fast, and let off, it wants to keep going like the throttle is hung for a second. I noticed it did the same thing before I ever started using the Smarty Jr. Is this common with all CTD?

 

Common with the CR engines. When you get on it your building that fuel pressure really high in the rail. When you let off, it takes a second for that pressure to bleed back down. I'm lucky in that I have a manual trans and can just push the clutch in, or else I would have rear ended a guy that stopped getting on the the freeway.