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Ignition Timing

IGNITION TIMING (DEGREES BTDC @ IDLE) (1)

Application Base Timing (2) ECM Controlled Timing
ES300 (3) 8-12 7-24
GS300 & GS430 (4) 8-12 6-16
IS300 (3) 8-12 6-16
LS430 & SC430 (3) 8-12 6-16
LX470 (4) 5-10 (5)
RX300 (4) 8-12 10-25
(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 removed from data link connector No. 1.
(3) With Jumper Wire (SST 09843-18030) installed between data link connector No. 3 terminals TC and CG.
(4) With Jumper Wire (SST 09843-18020) installed between data link connector No. 1 terminals TE1 and E1 on RX300 models, or terminals TC and E1 on other models.
(5) Information is not available from manufacturer.
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