• Mitsubishi Motors Corp. President Tetsuro Aikawa listens to a reporter's question during a press conference in Tokyo, Tuesday, April 26, 2016. Mitsubishi Motors, the Japanese automaker that acknowledged last week that it had intentionally lied about fuel economy data for some of its models, said an internal investigation found such tampering dated back to 1991. Aikawa told reporters Tuesday the probe was ongoing, suggesting that more irregularities might be found. (AP Photo/Shizuo Kambayashi)

    Mitsubishi Motors says false mileage tests done since 1991

    TOKYO (AP) — Mitsubishi Motors Corp., the Japanese automaker that acknowledged last week that it had intentionally lied about fuel economy data for some models, said an internal investigation found such tampering dated to 1991.