Eclipse L4-1795cc 1.8L SOHC (1990)
Continuity
Should not exist
IGNITION COIL
6. Using an ohmmeter, check the resistance value between terminals 1 and 3.
Resistance value
0.9 - 1.1 Ohms
7. Using an ohmmeter, check the resistance value between terminals 3 and high tension terminal.
Resistance value
19k - 27k Ohms
If the Power Transistor / Ignition coil unit fails any of these tests, replace as a unit.
Primary Ignition Coil Signal Pattern
OSCILLOSCOPE TEST
1. Run engine at idle speed.
2. Connect the scope probe to pick-up point #1 shown in the system schematic diagram and compare the primary ignition coil signal to the pattern
shown.
Power Transistor Control Signal Pattern
3. Run engine at idle speed.
4. Connect the scope probe to pick-up point #2 shown in the system schematic diagram and compare the power transistor control signal to the pattern
shown.
If scope patterns are not as depicted in images, continue with the rest of the test procedures before replacing the assembly.
HARNESS TEST
1. Disconnect the distributor connector and turn the key to the ON position.
2. Using a Voltmeter, check the Voltage between distributor harness terminal 3 and ground.
Voltage:
System Voltage.
3. Turn the key to the OFF position.
4. Using an ohm meter, check for continuity between distributor harness terminal 2 and ground.
Continuity:
Should exist.
5. Turn the key to the START position.
