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Toyota disputes critic who blames electronics

Toyota gave detailed evidence on Monday that it says disproves claims that electronics may cause the unwanted acceleration that led to the recall of more than eight million cars and trucks.

Toyota was attempting to counter tests by an Illinois engineering professor who said Toyota engines could rev without a driver pressing on the gas. The automaker says mechanical problems, not electronics, are to blame.

Toyota says faulty gas pedals and floor mats, not electronics, are the cause. It is fixing millions of vehicles to correct those problems. But some drivers have reported continued problems in vehicles that have already been supposedly fixed.