Ignition Timing: Adjustments
IGNITION TIMING ADJUSTMENT1. The vehicle should be prepared as follows before the inspection and adjustment.
^ Engine coolant temperature: 85 - 95°C (185 - 205°F)
^ Lights, electric, cooling fan, and accessories: OFF
^ Steering wheel: Neutral position
^ Transaxle: Neutral (N or P for A/T)
2. Insert a paper clip from wire side of the connector, and connect a tachometer to the paper clip.
CAUTION: The paper clip should be inserted as shown in the illustration.
NOTE <1.6L Engine>: Do not use multi-use tester. If the multi-use tester is connected to the diagnosis connector, the ignition timing delivered is not standard ignition timing but ordinary timing.
3. Connect a timing light.
4. Start and run the engine at curb idle speed.
5. Check curb dIe speed.
Curb idle speed: 750 ± 100 rpm
6. Turn off the ignition switch.
7. Connect a jumper wire clips to the terminal for ignition timing adjustment, and ground it.
NOTE: Basic ignition timing is obtained by grounding the ignition timing adjustment terminal.
8. Start and run the engine at curb idle speed.
9. Check basic ignition timing and adjust it necessary.
Basic ignition timing: 5°BTDC ± 2°
10. if not within the standard value range, loosen the distributor (1.5L engine) or crank angle sensor (1.6L engine) mounting nut and adjust by turning the distributor (1.5L engine) or crank angle sensor (1.6L engine).
Turning it counterclockwise retards timing, and clockwise advances it.
11. After adjustment, tighten the mounting nut while using care not to move the distributor (1.5L engine) or crank angle sensor (1.6L engine).
12. Stop the engine.
13. Disconnect the lead wire connected at step 7.
14. Start and run the engine at curb idle speed.
15. Check to be sure that the idling ignition timing is the correct timing.
Actual ignition timing:
1.5L Engine: Approx. 1O°BTDC
1.6L Engine: 5°BTDC
NOTE
1. Ignition timing is variable even under normal operation.
2. And it is automatically advanced at higher altitudes.