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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.
  1. Warm engine to normal operating temperature. Shut engine off. Connect timing light. Connect tachometer to proper terminals of engine check connector. See Fig 1-14.
  2. Install jumper wire between proper terminals of engine check connector. See Fig 10-22. Start engine and ensure idle speed is within specification. Ensure base timing is within specification with engine at specified RPM. See 4-CYLINDER IGNITION TIMING (DEGREES BTDC @ RPM)  table.
    NOTE: Timing marks are on front cover.
  3. Adjust timing by rotating the distributor.
  4. Remove jumper wire from engine check connector and ensure advance timing is within specification. See 4-CYLINDER IGNITION TIMING (DEGREES BTDC @ RPM)  table. Tighten distributor hold-down bolt or cam position sensor bolt.
4-CYLINDER IGNITION TIMING (DEGREES BTDC @ RPM) (1)

Application (2) Base Timing (3) Advance Timing
Camry 10 @ 750 13-22 @ 750
Celica
1.6L (4A-FE) 10 @ 800 0-20 @ 800
2.0L Turbo 10 @ 800 12-21 @ 800
2.2L (5S-FE) 10 @ 700 13-22 @ 700
Corolla
2WD (Calif.) & 4WD 10 @ 800 0-20 @ 800
2WD (Federal) 10 @ 700 0-20 @ 700
MR2
2.0L Turbo 10 @ 650 12-21 @ 650
2.2L (5S-FE) 10 @ 650 13-22 @ 650
Paseo 10 @ 750 6-18 @ 750
Pickup
4WD With A/T 5 @ 850 10-14 @ 850
All Others 5 @ 750 10-14 @ 750
Previa
A/T 5 @ 750 12 @ 750
M/T 5 @ 700 12 @ 700
Tercel
A/T 10 @ 800 7-17 @ 800
M/T 10 @ 750 7-17 @ 750
4Runner 5 @ 750 10-14 @ 750
(1) Check with transmission/transaxle in Neutral and parking brake applied.
(2) Check with jumper wire installed between engine check connector terminals "T" or TE1 and E1.
(3) With jumper wire removed from engine check connector.
Fig 1: Connecting Tachometer (Camry)
G92D24813Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Fig 2: Connecting Tachometer (Celica)
G92E24814Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Fig 3: Connecting Tachometer (Corolla)
G91I17911Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Fig 4: Connecting Tachometer (MR2)
G92G24816Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Fig 5: Connecting Tachometer (Paseo)
G92H24817Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Fig 6: Connecting Tachometer (Pickup 2.4L)
G92I24818Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Fig 7: Connecting Tachometer (Previa)
G92J24819Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Fig 8: Connecting Tachometer (Tercel)
G92D24821Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Fig 9: Connecting Tachometer (4Runner 2.4L)
G91D17916Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Fig 10: Installing Jumper Wire On Eng. Check Conn. (Camry)
G92E24822Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Fig 11: Installing Jumper Wire On Eng. Check Conn. (Celica)
G92F24823Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Fig 12: Installing Jumper Wire On Eng. Check Conn. (Corolla)
G91H17076Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Fig 13: Installing Jumper Wire On Eng. Check Conn. (MR2)
G91J17078Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Fig 14: Installing Jumper Wire On Eng. Check Conn. (Paseo)
G92I24826Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Fig 15: Installing Jumper Wire On Eng. Check Conn. (P/U & 4Runner)
G92J24827Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Fig 16: Installing Jumper Wire On Eng. Check Conn. (Previa)
G91H17522Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Fig 17: Installing Jumper Wire On Eng. Check Conn. (Tercel)
G92B24829Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
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