GTI knock sencor

[ken]

Can anyone please tell me what the knock sencor is ment to do,that is fitted to the outside of my engine block at the front.(this is to the left side of the oil filter)
The car is a MK2 1990 gti jetta,sorry i cant read the engine code number that might help.

ken

[golfvr6]

The knock sensor senses pre-ignition(pinking or knocking) and retardes the ignition timing accordingly.
Do you have a problem with it?

[richandhazel]

Spot on as always '6

[ken]

The answer may be, the car runs fine 99% of the time but now and then the car seams as its being starved of fuel,i get a jerking when under hard use of the throttle.If i take my foot of the throttle then straight back on again its works fine.
Many thanks for the reply.

[turbo]

this just controls the ignition timming if pinking is detected it ajusts.....

fuel starvation...... how long is it since your fuel filter was replaced!

your jerking problem may be something to do with the throttle switchs on the throttle check them out for snapped wires etc....... you should have 2 of theses 1 under the throttle and 1 on top to check the 1 on top start car up and turn the throttle and then press the switch if the revs die down the switch is working.....

[ken]

cheers scatmam john

ken

[turbo]

scabbaloneebeep beep! skrimlebap burlebop!
scat language! noo problemmo!

do you speak scat!