Timing Advance System
WARNING: This page is about a different car, the 1998 Infiniti Q45 and 1998 Infiniti I30. However, it is still accessible from the selected car via links, so may be relevant.
PCM controls ignition timing advance based upon sensor input signals that reflect ignition timing needs. If timing problems are experienced, inspect input signals listed below for proper operation. To check input signals, see ENGINE SENSORS & SWITCHES or PCM pin voltage charts in PIN VOLTAGE CHARTS article.
- A/C Clutch Signal
- Closed Throttle Position Switch
- Crankshaft Position Sensor
- Engine Coolant Temperature
- Ignition (START) Signal
- Mass Airflow Sensor
- Park/Neutral Switch
- Power Steering Pressure Switch
- Throttle Position Sensor
- Vehicle Speed Sensor