Really confused guys, I did 10 runs at the track last night and the car drive home just fine. Woke up today and it started again. Drove 3 minutes, parked the car for 15, came out and it wouldn't start. I replaced the battery, the starter, put a jumper on the clutch pos. sensor to bypass it. Nothing's worked. I measure 12 Vdc at the pos terminal of the starter and it works on a test bench. I measure 12.6v on the battery. I'm starting to think my stang is in anti theft mode. I turn the key and no click, no nothing. The fuel pump engages, the lights and accessories all work fine. I'm at a loss and very confused, the only thing I haven't ride is the actual ignition switch (not the key cylinder) and its on order. I do have a tune on the car but it's a tune I've used before with absolutely no problems and on a tuner with firmware I've used to load a tune 20+ times without issues. Any ideas anyone??