What’s the difference between EPA and California emissions packages? This video is sponsored by AP Emissions.
Catalytic converter replacement can be one of the most arduous repairs a shop takes on.
In order to test for leaks to resolve a code, you must think like the EVAP system and treat every EVAP leak like a crime scene.
It was revealed VW cheated on EPA emissions tests by programming 2009-2015 diesel vehicles to recognize test conditions the EPA uses. This practice has been going on since the 1990s when sensors gained enough resolution to determine the approximate ambient temperature and transmissions started to share vehicle speed with the engine’s computer.