Ignition Timing: Testing and Inspection
INSPECTION1. WARM UP ENGINE
Allow the engine to warm up to normal operating temperature.
2. CONNECT TOYOTA HAND-HELD TESTER OR OBDII SCAN TOOL
a. Connect the TOYOTA hand-held tester or OBDII scan tool to the DLC3.
b. Please refer to the TOYOTA hand-held tester or OBDII scan tool operator's for further details.
3. CONNECT TIMING LIGHT TO ENGINE
4. INSPECT IGNITION TIMING
Using a timing light, check the ignition timing.
Ignition timing:
1ZZ-FE: 10 - 18° BTDC @ idle
2ZZ-GE: 8 - 12° BTDC @ idle
(Transmission in neutral position)
HINT: After engine rpm is kept at 1,000 - 1,300 rpm for 5 seconds, check that it returns to idle speed.
5. DISCONNECT TIMING LIGHT FROM ENGINE
6. DISCONNECT TOYOTA HAND-HELD TESTER OR OBDII SCAN TOOL