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my weekend (AKA no fiat motors!)
"Ok, haven't messed with the fiat but some research has yielded the likely cause of the issue. The intake valves are run by an insanely complicated hydraulic system run off oil pressure, if the actuator fails, it holds the valves open and snags the spark plug on the way by one the piston bumps them, the mulit-air valve system is supposed to have a fail safe mode to prevent valve damage if an actuator fucks up, but I've read a couple accounts of what it did to you (me), all resulting in valve failure and a dead on road scenario. Also, the only warning of multiair system failure before it happens is occasional rough cold starts"
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