Civic L4-1590cc 16L SOHC (VTEC) Igniter - Component Location
Igniter: Description and Operation
Ignition Igniter
The igniter unit, located inside the distributor housing, controls ignition timing and is itself controlled by the ECU. The ECU contains memories for
basic ignition timing at various engine speeds, manifold pressures and coolant temperatures. The ECU retards or advances the timing to match these
memories through the igniter unit.