Knock Sensor - 9.3187 FACET

Engine knock is an uncontrolled ignition of the air-fuel mixture in the cylinders, resulting in a “mini-explosion”. During normal combustion of fuel, the flame propagation speed is about 30 m/s, but during detonation, it increases significantly and can already reach 2,000 m/s. A knock sensor is used to prevent and control this phenomenon. The sensor is used to prevent knocking by changing the ignition timing and returning the system to controlled combustion. It is used on injection engines.

1. TOURNEO CONNECT
2. TRANSIT CONNECT
3. TRANSIT CONNECT (P65_, P70_, P80_)
4. FOCUS II (DA_, HCP, DP)
5. FOCUS II Turnier (DA_, FFS, DS)
6. FOCUS II Station Wagon (DA_, FFS, DS)
7. FOCUS C-MAX (DM2)
8. FOCUS II Saloon (DB_, FCH, DH)
9. GALAXY (WA6)
10. S-MAX (WA6)
11. MONDEO IV (BA7)
12. MONDEO IV Turnier (BA7)
13. C-MAX (DM2)
14. VANQUISH Volante
15. MONDEO IV Saloon (BA7)
16. VANQUISH Vantage
17. DB9 Vantage
18. DB9 Volante
19. RAPIDE
20. RAPIDE ESPORTIVO
21. See more in applications

The usage of the knock sensor

Strong vibration is transmitted to the engine during knocking combustion. The sensor is designed so that it picks up these vibrations and converts them into an electrical impulse.

The FACET brand Knock Sensor is installed on the engine block housing. It is usually located between the second and third cylinders. This position of the sensor allows you to adjust more accurately the operation of all cylinders. It is also placed in the area of ​​the most possible propagation of detonation.