The knock sensor on your Toyota VVTi engine is basically a microphone that senses if detonation occurs in one of the cylinders. The detonation happens when the fuel-air mixture ignites before it ...

The Knock Link Kit - For Those Who Really Care About Their Expensive Motors - Turbo and High-Tech Performance Magazine ...

SCR technology has proven its ability to significantly reduce NOx emissions. Hence it has become an outstanding solution to be used to meet future emission limits in Europe, Japan and North America.