Ignition Timing: Testing and Inspection
INSPECTION1. WARM UP ENGINE
Allow the engine to warm up to normal operating temperature.
2. CONNECT TOYOTA HANDHELD 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