Manuals through 2025 now available!
Our trusted friends have launched a new website named LEMON, which has newer manuals. It also contains all the CHARM manuals.
LEMON is the spiritual successor to CHARM, I recommend you try it!
Link:
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lemon-manuals.org.ua
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Knock Sensor: Description and Operation
KNOCK SENSORTwo Types Of Knock Sensor (KS):
The knock sensor (KS) (Figure 41) is a tuned accelerometer on the engine which converts engine vibration to an electrical signal. The PCM uses this signal to determine the presence of engine knock and to retard spark timing.
