Ignition Timing: Testing and Inspection

VEHICLE PREPARATION
- Key OFF
- Electrical loads OFF (A/C, Heater, etc.)
- Engine at normal operating temperature
- Shift lever in PARK (A/T) or NEUTRAL (M/T)
- Timing light connected

PROCEDURE
1. Start engine using ignition switch (Do NOT use a remote starter).
2. Disconnect SPOUT connector.
3. Check base timing: It should be within ±2° of the specification found on the VECI underhood decal.
4. Reconnect SPOUT connector. Check for computed timing advance at 1500 RPM

NOTE: If timing is not within specifications, refer to "Computers and Control Systems : Testing and Inspection : Flow of Diagnosis.