Impreza Coupe FWD F4-1820cc 1.8L SOHC (1995)
Ignition Coil: Testing and Inspection
CHECK IGNITION SYSTEM FOR SPARK
1.
Remove plug cord cap from each spark plug.
2.
Install new plug on plug cord cap.
CAUTION: Do not remove spark plug from engine.
3.
Contact plug threaded portion on engine.
4.
Open throttle valve fully and crank engine to check that spark occurs at each cylinder.
CHECK POWER SUPPLY CIRCUIT FOR IGNITION COIL
Voltage Test
1.
Turn ignition OFF.
2.
Unplug connector from ignition coil.
3.
Turn ignition ON.
4.
Measure power supply voltage between coil connector terminal and body.
Connector & Terminal
Voltage
(E29) 2 - body
10 Volts minimum
CHECK IGNITION COIL
Ignition Coil Testing
1.
Measure resistance between coil terminals to check primary coil.
Terminals
Resistance
No. 2 - 1
0.7 Ohm
No. 2 - 3
0.7 Ohm
2.
Measure resistance between plug cable contacts to check secondary coil.
Connector & Terminal
Voltage
No. 1 - 2
13.8 K Ohms
No. 3 - 4
13.8 K Ohms
CHECK HARNESS CONNECTOR BETWEEN IGNITER AND IGNITION COIL
