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VW engineer pleads guilty in emissions case, will cooperate

FILE - In this Oct. 13, 2015, file photo, a Volkswagen Touareg diesel is tested in the Environmental Protection Agency's cold temperature test facility in Ann Arbor, Mich. A Volkswagen engineer pleaded guilty Friday, Sept. 9, 2016, to one count of conspiracy in the company's emissions cheating scandal. James Robert Liang, of Newberry Park, Calif., entered the plea in U.S. District Court in Detroit. (AP Photo/Carlos Osorio, File)
FILE - In this Oct. 13, 2015, file photo, a Volkswagen Touareg diesel is tested in the Environmental Protection Agency's cold temperature test facility in Ann Arbor, Mich. A Volkswagen engineer pleaded guilty Friday, Sept. 9, 2016, to one count of conspiracy in the company's emissions cheating scandal. James Robert Liang, of Newberry Park, Calif., entered the plea in U.S. District Court in Detroit. (AP Photo/Carlos Osorio, File) FILE - In this Oct. 13, 2015, file photo, a Volkswagen Touareg diesel is tested in the Environmental Protection Agency's cold temperature test facility in Ann Arbor, Mich. A Volkswagen engineer pleaded guilty Friday, Sept. 9, 2016, to one count of conspiracy in the company's emissions cheating scandal. James Robert Liang, of Newberry Park, Calif., entered the plea in U.S. District Court in Detroit. (AP Photo/Carlos Osorio, File)

DETROIT (AP) – A Volkswagen engineer has pleaded guilty to one count of conspiracy in the company’s emissions cheating scandal and has agreed to cooperate in the widening criminal investigation.

James Robert Liang, 62, of Newberry Park, California, entered the plea Friday in U.S. District Court in Detroit to one count of conspiracy to defraud the government through wire fraud. Liang is the first person to enter a plea in the emissions-cheating scheme.

Volkswagen has admitted to installing software on about 500,000 2-liter diesel engines in VW and Audi models in the U.S. that turned pollution controls on during government tests and turned them off while on the road. The Environmental Protection Agency found that the cars emitted up to 40 times the legal limit for nitrogen oxide, which can cause human respiratory problems.

Liang was indicted in June on one count of conspiracy to commit wire fraud and another count of violating the Clean Air Act. According to a plea agreement unsealed Friday, Liang admitted that he and others planned a special software function, known as a defeat device, that could cheat U.S. emissions tests after recognizing that a diesel engine they were designing could not meet customer expectations and stricter emissions standards. Using the defeat device enabled VW to obtain a certificate from the Environmental Protection Agency needed to sell the cars in the U.S.

Liang pleaded guilty to the conspiracy charge before Judge Sean Cox. He will be sentenced on Jan. 11. The judge said that sentencing guidelines call for Liang to serve five years in prison.