i was crusing around 70 mph on motor way when engine appeared to be struggling to go up incline eventually to the point it nearly came to a stop the engine management light then came on and the best i could do was get it to roughly tick over if you tried the accelerator pedal it just cut out. rac ran diags which kept coming up with spark problem. garage have tried replacement to no avail. any idaes - ecu hopefully not!!
dave u

Hi
One of the coil packs may have given up the ghost totally! Head gasket blown between two pots? Cant think of anything else.