3000GT V6-3.0L SOHC (1998)
Using Scan Tool
<Ignition timing adjustment mode>
<Standard ignition timing>
Using Oscilloscope
1. Primary signal of ignition coil
(1) Run the engine at an idle speed.
(2) Connect the probe to oscilloscope pick-up point 1 as shown in the circuit diagram and check the primary signal of the ignition coil.
2. Control signal of ignition power transistor Connect the probe to oscilloscope pick-up point 2 as shown in the circuit diagram and check the control
signal of the ignition power transistor.
HARNESS INSPECTION
Measure the power supply voltage of the ignition coil.
-
Connector: Disconnected
-
Ignition switch: ON
Voltage (V): Battery positive voltage
OK: GO TO STEP 2
NG: Repair the harness. (A2 - Ignition switch)