But Steve it's just been highlighted that the chip did not " fuck " your engine !!! Also I have just spoken to Luke who said he can not remember but seems to think you took your Msd chip away with you , he also said why would he have gone away to make a tweak when his laptop and emulator was in your car ! ... You are speculating and moving away from the real point which is Did the spark advance cause the det ..... Answer is probably not !!!