fact is the whole report chain is rotten. who wrote the code, who told him so, and indirectly most engineers that had a reasonable knowledge to be in a position of suspecting a foul play.<p>you can&#x27;t get this running for 6 years without widespread cooperation, or at least willfully turning a blind eye.<p>those engines ran loads of miles on benches before being put into cars, and it&#x27;s a large group running multiple cross tests on many parameters including fuel consumption and efficiency and operating temperature, which should give anyone within the sector a good rough idea of how an engine performs emission wise.