Girlfriend's cobra cuts off on occassions. Check for codes nothing showing up. But then again I heard that with a tuner some codes wouldn't show up? Got it with a pulley and the Diablo tune whcih it runs great and I have had it cut off once with me. Popped the clutch and it fired up. it happens when slowing down. and with her mostly in a left turn. She gets a little upset. But if it ain't broke how can u fix it? ha Not sure where to look first. any ideas?