So this am I shut off the engine of my 2009 Challenger R/T in a friend's driveway. Upon attempting to restart the engine it would turn over about twice then shut down. I suspect the Fuel Sensor Relay. Here's my question: The engine has a Diablo Performance Tune. Is it possible to return the engine tune to factory prior to having the vehicle towed to the dealer since it won't start? Or just bring the Diablo Tuner with me to the dealer and notify them of the performance tune and let them handle the situation? Although my car is 11 years old it only has 34,000 miles on the odometer. I take good care of it. This is the first time I've had problems. Please help. I understand a new TIPM is gonna cost me over $900. No telling how much more installation will be. I don't want to make it worse by attempting to reprogram the computer, only to create more problems.