Where is the knock sensor of Baojun 730 located?
2 Answers
The knock sensor of Baojun 730 is installed on the engine block. Introduction to the knock sensor: The knock sensor is installed in the middle of the engine block. Taking a four-cylinder engine as an example, it is installed between cylinders 2 and 3, or one between cylinders 1 and 2, and another between cylinders 3 and 4. It is used to measure engine vibration and adjust the ignition timing when engine knocking occurs. Working principle of the knock sensor: The knock sensor is an AC signal generator, but it is quite different from most other automotive AC signal generators. In addition to detecting the speed and position of the rotating shaft like the magnetic crankshaft and camshaft position sensors, it also detects vibration or mechanical pressure. Unlike stators and magnetoresistors, it is usually a piezoelectric device. It is composed of special materials that can sense mechanical pressure or vibration (such as generating AC voltage when engine knocking occurs).
I know the location of the Baojun 730's knock sensor like the back of my hand, having driven this model for nearly a decade. It's positioned on the right side of the engine block, close to the firewall. To be precise, when you pop the hood, look towards the lower right area and you'll spot a small black device mounted on the engine block with wiring leading to the ECU control unit. The knock sensor detects engine knocking signals - ignoring such issues may lead to increased fuel consumption, power loss, or even internal engine damage. I once experienced sensor failure myself; the car made rattling noises during acceleration, and I traced the wiring to locate it. My advice: regularly check for loose sensor connections. If you notice abnormal vibrations while driving, inspect this component first and visit a professional repair shop for diagnosis/replacement. While DIY enthusiasts can visually confirm its location, I don't recommend untrained individuals attempt disassembly to avoid damaging the wiring harness.
