I bought the quadzilla a few days ago so that I could get my check engine light off. So far I can't get it to download the no dpf option successfully. Every time I have tried with either the stock no dpf or 50 hp no dpf I end up getting a seed error and key error message and the truck won't start. I then have to turn the key off, take off the programmer, plug the programmer back in and wait for the screen messages and then it will start. When I try to return to stock it says sum error. I have been able to download the stock tune successfully though. Anybody have any ideas before i call quad?

Sorry this was supposed to be in electronics and I don't know how to delete it from this section.