Engine - 3VZ Timing

Engine - 3VZ Timing

Ignition Timing:

1. Start engine and allow to reach normal operating temperature.
2. Connect a tachometer test probe to terminal IG of the check connector.
   NOTE: Never let a tachometer lead touch the ground as this could cause damage to the igniter and/or coil. Be sure the check that your tachometer is compatible with this ignition system. Consult the operating manual for your instrument.
3. Using the service wire, connect terminals "T" & "E1" of the check connector.
4. Check idle speed. Your idle speed should be at, or close to 800 RPM.
5. Using a timing light verify that the timing mark on the timing cover is aligned with the mark on the crankshaft pulley.

Ignition Timing - 10 degrees BTDC at idle:

1. Tighten the distributor bolt and recheck the ignition timing.
2. Remove service wire.
3. Check idle advance timing with service wire removed.

Ignition Timing - 8 degrees BTDC at idle:

1. Check idle speed and adjust as necessary, Computerized Engine Controls.
2. Disconnect tachometer and timing light from engine.