STARTED ENGINE, NOTICED SMOKE COMING FROM UNDER VEHICLE, TURNED ENGINE TO OFF, GOT OFF AND SAW FIRE ON LEFT SIDE. GRABBED FIRE EXTINGUISHER AND EXTINGUISHED FIRE. FIRE CAUSED BY PLASTIC FUEL RAIL FAILURE AND SPILLING FUEL ONTO ENGINE HEADER. PROBABLE CAUSE OF FUEL RAIL FAILURE IS ETHANOL FUEL DETERIORATING FUEL RAIL. *TR