Well, after fighting air leaks, AMM issues, and crappy running I got a couple weeks of real nice driving, commuting 150 miles a day with no problems whatsoever. Then, yesterday, it sputtered, hesitated under load, bucked, dropped cylinders, stalled, all the symptoms of a massive air leak, then died in my driveway and now won't start. Cranks over like crazy, but doesn't make any attempt to catch whatsoever, even with the pedal to the metal and / or in limp home mode. Here's what I know so far -
- Plenty of strong spark, pulled and checked all plugs
- No apparent air leaks, went over all hoses, intakes, etc carefully.
- Won't start with AMM connected or disconnected
- Checked timing belt, it's fine (changed 25K miles ago)
- Fuel pump spins up normally
- Plenty of fuel, you can smell the gas after its been cranking for a while and I disconnected the fuel return line off the back of the FPR and plenty of gas came out (controlled, into a container of course) while trying to start
- No apparent obstructions in air intake anywhere

As far as my limited knowledge goes, if it gets air, spark, and gas, it ought to at least try to run and even if the timing is way off it ought to at least sputter and run poorly, right? Whatever happened was quick and catastrophic, running great one minute, barely made the last half mile home, died in the driveway. Here's what I don't know -
- WTF is going on or WTF to do next. Any help and suggestions would be most appreciated. Thanks in advance -