3 Vze Knock Sensor Location . You have lift the car if you want to reach it. A knock sensor is a device installed in your vehicle that senses the knocking of the engine. LOts of pics 3vze rebuild - YotaTech Forums (Dora Frazier) More details about the location of the shroud, Shadow? This sketch reads a piezo element to detect a knocking sound. My dual knock sensor mounting locations: Originally Posted by Danny Recommended Mounting Locations: • Choose a stiff, centrally located. engine>spark control>knock sensors>knock sensor level. Don't forget to connect a Ohmeter and adjust this sensor to its right ohmeter values for a properly installation, this sensor is not a PLUG & PLAY stuff. The knock sensor is mounted to the back of the engine by the distributor. Toyota 4runner Knock Sensor Location 3vze code 52 troubleshooting - YotaTech Forums