ELECTRONIC SPARK ADVANCE (ESA) CONTROL SYSTEM
F2-133prose procedureMentions MTX (manual transaxle) vs ATX (automatic transaxle) distinctions: clutch switch and neutral switch on MTX; transaxle range switch on ATX.
DESCRIPTION
The ignition timing is determined and set within ECM by signals from the various sensors and switches to obtain the best engine performance.
CONTROL SYSTEM
The ECM provides the most suitable ignition timing according to data sent from various sensors and switches.
The ignition timing is separated into two types, the basic ignition timing and the changeable ignition timing.
Ignition timing
Ignition timing
Cranking
Ignition timing (BTDC)6—8°
Idling
Ignition timing (BTDC)9—11° {10 ± 1°}
Driving
Ignition timing (BTDC)Ignition timing advanced according to engine speed and intake manifold vacuum (calculated by engine speed and intake air amount).