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!
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Ignition Timing: Description and Operation
Ignition Timing Control -
The ECM/PCM contains memories for basic ignition timing at various engine speeds and manifold air flow rates. Ignition timing is also adjusted for engine coolant temperature.
-
A knock control system was adopted which sets the ideal
ignition timing for the octane rating of the gasoline used.*3
*3 CVT (D6Y5 engine), D16Y8 engine and B16A2 engine