Timing Advance System
Ignition timing advance is controlled by ECU based upon sensor input signals which reflect ignition timing needs. If timing problems are experienced, inspect input signals for proper operation. See TIMING ADVANCE SYSTEM INPUT SIGNALS table. To check these input signals, see ENGINE SENSORS & SWITCHES or ECU pin voltage charts in J - PIN VOLTAGES CHARTS article in the ENGINE PERFORMANCE Section.
TIMING ADVANCE SYSTEM INPUT SIGNALS
| Application | Model Usage | ||
|---|---|---|---|
| Airflow Meter | G20 & M30 | ||
| Battery Voltage | G20 & M30 | ||
| Crank Angle Sensor | M30 | ||
| Engine (Coolant) Temperature | G20 & M30 | ||
| Ignition Switch START Signal | G20 & M30 | ||
| Neutral Switch | (1) G20 | ||
| Park/Neutral Signal | G20 | ||
| Throttle Position Sensor & Idle Switch | M30 | ||
| Vehicle Speed Sensor | G20 & M30 | ||
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