I have to find out if there is a version for iPad, since I don't have a laptop, plus an adaptor for the diagnostic connecter that plugs into the Lightning connector on the iPad, or even better a Bluetooth adaptor. A year and a half ago I pulled the engine and replaced the entire timing gear/chain/guide system. To be honest that was almost easy compared to the aggravation this is causing! Thanks for all your help, Bob. I'll let you know how it goes when I investigate your links.