Just came out of Home Depot with a basket full of junk, my wife unloaded in to be back of the truck, after I carefully unlocked the toper rear door with the key, while my wife took the cart to the rack, I jumped into the cab and started the truck, WELL it was a good plan! the truck cranked an started and immediately Quit - - well, not satisfied, I did it again! results SAME THING. I decided that I needed to change the fuel filter that I didn't change last week. Changed the filter, no help! After a little cussing and discussing the in tank booster pump, I pulled out the Smarty and plugged it in - - and guess what - - it had a code - - something new - - - missing SIM P205- - wait a minute then a young walked up with his wife and asked if I needed some help as he was a mechanic - - told him I thought it was a lift pump - - He knew what I was talking about, said he didn't want to take the fuel tank down with full in the Home Depot parking lot, to which I agreed, I was still thinking about that code What the he-- is a SIM heard that about Cell phones but Trucks? Wait Just a cotton picking, I reached into my pocket and picked my keys out - - Yep, you've got it! the Ignition key was in my pocket - - I reached into the cab and pulled the spare keep out of the ignition switch! I had that key in my hand when I unloaded the back of the truck - - the fancy key with the alarm buttons was in my pocked, started the truck immediately and its has not missed a lick since - - boy did I feel like an idiot - - -worst part was my wife agreeing with me - - for a change! - - but the bottom line was the Smarty, if I hadn't used it I would have ordered a wrecker!!! bid $$ Ok well DUMBA--