My pops took his truck in for the smog, they drive it and then comes back an said the check eng light is on. He just had it at the dealer and the light wasn't on.The dealer was 2 weeks ago. I drove this truck just the other day to get fuel for him and the light wasn't on then. I think i need to go hurt somebody. Going down now to have it scaned. I also found rubber in his fenderwell, with the 410 gears and banks kit, it will smoke the tires all the way thru drive