Ignition Timing: RX300
- Remove intake manifold cover. See Figure. Start engine and warm engine to normal operating temperature. Shut engine off. Connect scan tool to data link connector No. 3. See Fig 1. Scan tool is used to read engine RPM.
- Connect timing light lead to lead wire located near ignition on top of front valve cover. See Fig 2. Apply parking brake. Place transaxle in Neutral. Start engine and maintain engine at 2500 RPM for 90 seconds and then allow engine to idle. Ensure idle speed is 650-750 RPM.
- Install Jumper Wire (SST 09843-18020) between terminals TEI and E1 on data link connector No. 1. See Fig 3. Data link connector No. 1 is located just in front of driver's side strut tower.
- Timing marks are located on timing belt cover, near crankshaft pulley. Ensure base ignition timing is 8-12 degrees BTDC at idle with transaxle in Neutral, and with A/C and all accessories off. Remove jumper wire from data link connector No. 1. Ensure ECM controlled timing is 10-25 degrees BTDC. Shut engine off. Remove timing light and scan tool. Reinstall intake manifold cover.
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002