Recently got a Honda Accord CTDI 2.2 executive on a 54 plate, been running fine until l took it upto 75 -80 mph and suddenly stated to lose speed and the glow plug warning light started to flash, pulled in and followed the handbook instructions which were restart engine 3 times to clear the fault, it did'nt so slowly drove it home again as per handbook,luckily its under warrenty but would like to know if anyone knows what the problem is.