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Japanese automakers Suzuki, Mazda and Yamaha admit using false emissions data

09 August 2018

Suzuki, Mazda and Yamaha cleared vehicles for emissions or fuel efficiency even in cases where they were tested under invalid conditions, the ministry said in a statement.

Several manufacturers in Japan have been found to have improperly tested cars for emissions and fuel economy in an investigation ordered by the Japanese government after the discovery of Nissan and Subaru's emissions testing impropriety previous year.

All three have already complied with a request by the Japanese Ministry of Land, Infrastructure, Transport and Tourism (MLIT) to conduct investigations into the matter.

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The report is the latest episode in a growing list of data falsifications that have tarnished the image of Japan's manufacturing industry, known for its high-quality and efficient production. In Suzuki's case, the time period stretched back to 2012.

At a news conference on Thursday, Suzuki president Toshihiro Suzuki apologized for the automakers actions. Suzuki said almost half of its 12,819 new vehicle inspections involved improper inspections at its three plants.

They said incomplete emissions tests were done on some of its vehicles, but its officials certified the results as though the tests had been administered properly. According to a report by the Nikkei Asian Review, Mazda, Suzuki and Yamaha are now caught up in the scandal as well.

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At Mazda, of 1,875 cars subject to the sampling inspection, improper inspections were discovered in almost 4 percent since November 2014.

Mazda said there were irregularities in 4 percent of similar inspections on its cars, or just over 70 vehicles. The ministry said it will instruct them to save records of the inspections and implement measures to detect or prevent data falsification. Yamaha Motor confirmed it carried out inappropriate testing.

"It is extremely regrettable". The transport ministry will change its ministerial ordinance to request automakers save test results of manufactured vehicles and take measures to prevent adjustment of results.

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Japanese automakers Suzuki, Mazda and Yamaha admit using false emissions data