The Illinois Environmental Protection Agency (IEPA) informs WEVTU that a initial dynamometer emissions test of a 1996 2L I-4 Volkswagen AG vehicle recorded incorrect test scores of zero hydrocarbons (HC) and carbon monoxide, CO. The IEPA I/M program technical director, Jim Matheny, says the incorrect readings were due to “abnormally high ambient background concentrations,” which when compared with measured tailpipe emissions effectively indicated no emissions generated by the engine. ...

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