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:
lemon-manuals.la or
lemon-manuals.org.ua
(Some people have issue connecting. LEMON is investigating. For now, use Firefox or change your DNS server)
Or, hide this message:
temporarily or
permanently
Knock Retard
The scan tool displays a range of
0.0 degrees-16 degrees. Knock retard indicates the amount of spark the
PCM removes from the Ignition Control
(IC) spark advance in response to the signal from the
knock sensors.