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General => The garage => Topic started by: free on 21 December 2004, 20:42

Title: knock sensor
Post by: free on 21 December 2004, 20:42

would jst like to no a few things about it,

whats it for?
 whats it do?
how do you no if its seen better days?
 ect.

thanks

paul :wink:

Title: Re: knock sensor
Post by: mk1 on 21 December 2004, 22:01

It senses when the engine pre-ignites, ie pinking. The ecu receives a signal from the sensor and retards the timing until the pinking stops. Very hard to test without a scope, usually substitution is the way to go.
Steve.

Title: Re: knock sensor
Post by: free on 21 December 2004, 22:17

cool, thanks steve, all i new about it b4 is that:
its on the side of the head (above the gear box) connected 2 a whire,
and u got 2 tarqe it up rite, cos if u dont its fookd.
and is a bin bag job.

Title: Re: knock sensor
Post by: mk1 on 22 December 2004, 20:59

The knock sensors are usually fitted on the block, what engine do you have?.
Steve.

Title: Re: knock sensor
Post by: free on 24 December 2004, 18:01

yes it is the block,  near where the water pipe gos in our out,
its a digifant in my gti n 1.6, in my driver