Ignition Timing: V6: 4Runner

WARNING: This page does not describe the selected car, but rather 10 other vehicles, including the 2002 Toyota Tundra, 2002 Toyota Tacoma, 2002 Toyota Sienna, 2002 Toyota Sequoia, and 2002 Toyota Land Cruiser. However, it is still accessible from the selected car via links, so may be relevant.

Start engine and warm engine to normal operating temperature. Shut engine off. Connect timing light. Cylinder No. 1 is front cylinder on right side when viewed from flywheel end of engine. See Figure.
Connect Toyota hand-held tester or scan tool to data link connector No. 3 at driver's side of instrument panel. See Fig 8. Hand-held tester or scan tool is used to read engine RPM.
Apply parking brake. Place transmission in Neutral. Start engine and maintain engine at 1000 RPM for 5 seconds and then allow engine to idle. Ensure idle speed is 650-750 RPM with A/C off.
Install Jumper Wire (SST 09843-18020 or SST 09843-18040) between terminals TC and E1 on data link connector No. 1. See Fig 12. Data link connector No. 1 is located at center of air intake chamber at driver's side of the engine.
Check ignition timing with engine idling. Timing marks are located on timing belt cover, near crankshaft pulley. Ensure base timing is within specification at idle with transmission in Neutral, and with A/C and all accessories off. See V6 IGNITION TIMING table.

Remove jumper wire from data link connector No. 1. Ensure ECM controlled timing is within specification. See V6 IGNITION TIMING table. Shut engine off. Remove timing light and hand-held tester or scan tool.

V6 IGNITION TIMING (Degrees BTDC @ Idle) ⁽¹⁾

Application

Base Timing

ECM Controlled Timing

Avalon

⁽²⁾ 8-12

⁽³⁾ 10-25

Camry

⁽⁴⁾ 8-12

⁽⁵⁾ 7-25

Camry Solara

⁽⁶⁾ 8-12

⁽³⁾ 7-24

Highlander

⁽⁴⁾ 8-12

⁽⁵⁾ 7-24

Sienna

⁽⁶⁾ 8-12

⁽³⁾ 7-24

Tacoma

⁽⁴⁾ 8-12

⁽⁵⁾ 3-19

Tundra

⁽⁴⁾ 8-12

⁽⁵⁾ 12.5-22

4Runner

⁽⁶⁾ 8-12

⁽³⁾ 3-19

⁽¹⁾	Check with engine at normal operating temperature, transmission/transaxle in Neutral, parking brake applied, and A/C and all accessories off.

⁽²⁾	With Jumper Wire (SST 09843-18020 or SST 09843-18040) installed between terminals TE1 and E1 on data link connector No. 1.

⁽³⁾	With jumper wire removed from data link connector No. 1.

⁽⁴⁾	With Jumper Wire (SST 09843-18020 or SST 09843-18040) installed between terminals No. 4 (CG) and 13 (TC) on data link connector No. 3.

⁽⁵⁾	With jumper wire removed from data link connector No. 3.

⁽⁶⁾	With Jumper Wire (SST 09843-18020 or SST 09843-18040) installed between terminals E1 and TC on data link connector No. 1.

Fig 1: Locating Data Link Connector No. 3 (Avalon)

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Fig 2: Locating Data Link Connector No. 3 (Camry)

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Fig 3: Locating Data Link Connector No. 3 (Camry Solara)

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Fig 4: Locating Data Link Connector No. 3 (Highlander)

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Fig 5: Locating Data Link Connector No. 3 (Sienna)

Fig 6: Locating Data Link Connector No. 3 (Tacoma)

Fig 7: Locating Data Link Connector No. 3 (Tundra)

Fig 8: Locating Data Link Connector No. 3 (4Runner)

Fig 9: Installing Jumper Wire Between Data Link Connector No. 1 Terminals (Avalon)

Fig 10: Installing Jumper Wire Between Data Link Connector No. 1 Terminals (Camry Solara)

Fig 11: Locating Data Link Connector No. 1 & Identifying Terminals TC & E1 On Data Link Connector No. 1 (Sienna)

Fig 12: Locating Data Link Connector No. 1 & Identifying Terminals TC & E1 On Data Link Connector No. 1 (4Runner)