Ignition Timing
CAUTION:
Some tachometers may not be compatible with ignition system. Consult tachometer manufacturer before connecting tachometer to system. To avoid possible damage to ignitor and/or coil, DO NOT
allow tachometer terminal to become grounded.
- Warm engine to normal operating temperature. Shut engine off. Connect tachometer to proper terminals of data link connector. See Fig 2 and Fig 3.
- Open cover located above the ignitor. Connect timing light lead to Green wire and to battery. See Fig 1. Ignitor is located near driver's side strut tower.
- On all models, apply parking brake and start engine. Hold engine RPM at 2500 RPM for about 90 seconds. Ensure idle speed is within specification with transmission/transaxle in Neutral and all accessories off. See 6-CYLINDER IDLE SPEED SPECIFICATIONS table.
- Shut engine off. Install Jumper Wire (SST 09843-18020) between terminals TE1 and E1 of data link connector located in engine compartment. See Fig 2. Start engine.
NOTE:
Timing marks are located on front cover.
- Ensure base timing is within specification with engine idling at specified RPM and transmission/transaxle in Neutral. See the 6-CYLINDER IGNITION TIMING table.
- If ignition timing is incorrect, check valve timing by ensuring proper alignment of timing belt. See ENGINES article in ENGINE MECHANICAL section.
- On all models, remove jumper wire from data link connector. Ensure advance timing is within specification. Refer to the 6-CYLINDER IGNITION TIMING table. Shut engine off. Remove timing light and reinstall components.
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002 6-CYLINDER IGNITION TIMING
| Application |
Base Timing |
Advance Timing |
| 3.0L Non-Turbo |
10 @ 700 |
7-19 @ 700 |
| 3.0L Turbo |
10 @ 650 |
10-20 @ 650 |
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002