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Home >> Honda >> 1987 >> Prelude Base, Standard >> Repair and Diagnosis >> Engine Performance >> System >> PGM-FI Electronic Control System >> Description & Operation >> Control Devices >> Ignition Timing
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Ignition Timing

On all models, ignition timing is directly controlled by the ECU based upon input signals from crank angle sensor, throttle angle sensor, coolant sensor and MAP sensor. ECU triggers ignitor, which in turn triggers ignition coil.