Ignition Timing: Testing and Inspection
INSPECTION1. REMOVE V-BANK COVER
2. WARM UP ENGINE
Allow the engine to warm up to normal operating temperature.
3. When using LEXUS hand-held tester or OBDII scan tool: INSPECT IGNITION TIMING
a. Connect a LEXUS hand-held tester or OBDII scan tool to the DLC3.
b. Please refer to the LEXUS hand-held tester or OBDII scan tool operator's manual for further details.
c. Start the engine at idle.
d. Check the ignition timing.
Ignition timing: 8 - 12° BTDC @ idle (Transmission in neutral position)
e. Disconnect a LEXUS hand-held tester or OBDII scan tool from the DLC3.
4. When not using LEXUS hand-held tester or OBDII scan tool: INSPECT IGNITION TIMING
a. Connect tachometer test probe to terminal IG (-) of the check connector.
b. Connect the tester probe of a timing light to the yellow lead wire of the ignition coil connector for No.1 cylinder.
c. Using SST, connect terminals TC and E1 of the DLC1.
SST 09843-18020
d. Start the engine at idle.
e. Check the ignition timing.
Ignition timing: 8 - 12° BTDC @ idle (Transmission in neutral position)
f. Remove the SST from the DLC1.
SST 09843-18020
g. Remove the timing light from the engine.
h. Remove the tachometer.
5. REINSTALL V-BANK COVER