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
Ignition Timing: Testing and Inspection
NOTE: Base (initial)
ignition timing is NOT adjustable on any engine. Do not attempt to adjust ignition timing by rotating the
distributor.
All
ignition timing functions are controlled by the Powertrain Control Module (PCM). For additional information, refer to the appropriate Powertrain Diagnostics Procedures for operation of the DRB Scan Tool.