if its not generating a pule train for teh injecotrs or spark plugs, there are 2 posssible sensors, the tdc at teh bottom of the front of the engine and /or the phasse sensor in the dizzy, each are about 20-25 quid and if they fail the engine will not run as the ecu does not know mechanically where the enigine is. but for both the ignition amp on the wing and another to go at the same time is unusal, more likely to be water in teh multiplugs at teh back of the engine bay they connect the car loom to the engine loom, if these get water in them (ususally due to steam cleaning or pressure washing) then they can cause all sorts of problems, a lot of people do away with these connectors and solder each wire in turn so that they wont be a problem again. hth.