Non adjustable:
Ignition timing is controlled by the electronic control ignition timing system. The ignition timing data for the engine operating conditions are programmed in the memory of the engine control module (ECM).
The engine conditions (speed, load, warm-up condition, etc.) Are detected by the various sensors. Based upon these sensor signals and the ignition timing data, signals to interrupt the primary current are sent to the engine control module. The ignition coil is activated, and timing is controlled at the optimum point.
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Tuesday, December 21st, 2010 AT 4:24 AM