Ok help please. This has happened a few time. I write a tune then it wont start. The only thing I am changing is the wot and in fact all I am doing is trying to bring it back to what the tune shop set it at nothing less. Either way after writing the tune it wont start I wait 3 minutes still issues. This has happened a few times over the last 2 weeks. first time thought it was the mass sensor so I replaced it. Today I ended up disconnecting the mass sensor reconnecting it then with some hesitation it started after that it has been starting ok. The 29th is what I was running 30th is new file. It needs to be noted tuner had all settings at 1300/1336 Also same thing happened when just downloading a tune. which should not effect anything. Any help would be great getting concerned on using tuner.