Ignition Timing
- Start and warm engine to normal operating temperature. Shut engine off. Connect timing light to spark plug wire on cylinder No. 1 (front cylinder at timing belt end of engine). Connect scan tester to data link connector No. 3. See Fig 1. Scan tester is used to read engine RPM.
- Install Jumper Wire (SST 09843-18020) between terminals TE1 and E1 of data link connector No. 1. See Fig 2.
- Apply parking brake. Place transaxle in Neutral. Start engine and maintain engine at 1000-1500 RPM for 5 seconds and then ensure engine returns to idle.
NOTE:
Timing marks are located on front cover.
- Ensure base timing is within specification at idle with transaxle in Neutral, and with A/C and all accessories off. See IGNITION TIMING table.
- On 1.6L (4A-FE), if base timing is not within specification, loosen distributor hold-down bolts. Rotate distributor to obtain correct base timing. Tighten distributor hold-down bolts.
- On all models, remove jumper wire from data link connector No. 1. On 1.6L (4A-FE), ensure ECM controlled timing is within specification. See IGNITION TIMING table. On all models, shut engine off. Remove jumper wire, timing light and scan tester.
IGNITION TIMING (Degrees BTDC @ Idle)
| Application Type |
Base Timing |
ECM Controlled Timing |
| 1.6L (4A-FE) |
10 |
5-15 |
| 1.8L (7A-FE) |
8-12 |
|
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002