Toyota has rejected claims that faulty electronics are behind its worldwide recall of more than eight million cars.

对于此次全球召回超过800万辆汽车，丰田否认了有缺陷的电子问题是导致召回的说法。

The recalls have hit Toyota's image

The company said mechanical faults with accelerator pedals（油门踏板） and floor mats were the cause of the problems, rather than the car's electronics.

Outside studies have recently criticised Toyota's electronic safety systems.

But at a press conference on Monday, Toyota rejected those findings as not credible¹（可靠的，可信的） .

Last month, the US Congress heard from a Southern Illinois University engineer David Gilbert, who said that Toyota's electronic safety systems could be rewired to allow the car to unintentionally（无意地，不自觉地） accelerate.

But Toyota said a review of the findings by a Stanford University expert found no "real-world" evidence of an electronic flaw.

Chris Gerdes, a professor of mechanical engineering at Stanford, said that the researchers had essentially² rewired the car's electronics to create the problem - something that could not happen in real life.

"We're confident in our electronic throttle³ control（节流控制） systems," a spokesman for Toyota said.

US authorities are currently investigating reports of persisting problems in Toyotas even after they have been recalled.

Toyota said these incidents were due to poor repair work, rather than a different underlying⁴（根本的，潜在的） problem.