15
Knock
Tuning the knock sensor is not a trivial task, and can take a considerable amount if time and
experimentation to get right. Configuring the knock dynamics of an engine and over comming issues of
mechanical noise can take a lot of time and effort, therefore you must not rely on the knock sensor to
prevent knock, this can only be done by sensible tuning and using the correct octane fuel for your
application.
Although VEMS will work with a variety of knock sensors the ones that have been tried and tested are
Bosch, although other 2 or three wire sensors may work.Do not use a single wire knock sensor as they use
the common ground of the block to create the circuit, using the block will inject too much noise into the
sensitive knock circuitry.
