In this topic today i will talk about knock sensor .
what is knock sensor ? also we will learned about knocking.
What is difference between knocking and pre-ignition and also know the reason of knocking in the engine and how we fix these problems .
Now lets start the topic…
1 : LOCATION ?
First we talk about knock sensor location ,The knock sensor is located on the outside of the engine block.
2 : WORKS ?
As its sensor name is knock sensor It is intended to record knocking noise in all engine operating states in order to prevent engine damage.
so the works of knock sensor is to trace the bad vibration in the engine its mean knocking , exactly what is knocking Normal condition 4 cylinder or 4 storks engine leads piston downwards
in the first stroke or intake stork and air plus fuel entered the cylinder second stroke piston takes air fuel mixture compressors intake up
then spark plug comes out at the top up the piston and the power stroke piton goes down again filled the burn gases in the cylinder 4th storks
exerts in which piston burns the gases take them out ,this is normally functions on engine.
where is knocking these all storks let we know normal condition fuel and air mixture proper burring and the mixture is burning improper we called that is knocking.
3 :PRE_IGNATION ?
its mean before time ignited or burn , when the piston fast or slow comes up while compressing air and fuel mixture so on the way mixture burn that’s called PRE _ IGNATION.
means before spark comes out the mixture burns.
4: THERE ARE TOW RESONS OF PRE-IGNATION ?
when hot carbon particles entered the chamber from the valves the fuel burns before its life.
bad spark plugs or low quality spark plugs gets too hot its burns before fuel ignition.
5: EFFECTS OF KNOCKING ON THE ENGINE ?
Due to knocking or pre-ignition or improper movement of piston and valve will be damage of engine cylinder and pistons.
basically knock sensor designed to protect functional engine condition to produce high or low fuel consumption.
if comes out knocking the knock sensor is controlled mixture by looking ecu signal.
