Please see my tip at http://www.fixya.com/cars/r6223989-ignition_coil_doesn_t_spark . These are generic instructions--specific instructions are pasted below from Autozone.com. If you get stuck, please get back to me.
Use a test light to check for power to the coil on the black wire with a yellow stripe--see procedure below and other tests you can run. You will need a volt-ohm meter to run most of these tests.
The system used on 1990-95 Accords and 1989-95 fuel injected Preludes uses the distributor components to signal the engine computer. The ECU triggers the spark through the igniter unit and coil. This spark timing is controlled by the computer as an integrated function of the fuel management system. The distributor contains a crankshaft angle sensor and a No. 1 Cylinder Top Dead Center (TDC) sensor. Using these and other electrical inputs, the computer controls spark timing electrically.
1990-91 ACCORD
See Figure 6
- Remove the distributor cap, rotor and shield.
- Label and disconnect the 4 wires from the igniter unit.
- Switch the ignition ON . Use a voltmeter to check for voltage between the black/yellow wire and ground. Battery voltage should be present. If the voltage is not present, check the black/yellow wire between the igniter and the ignition switch.
- Check for voltage between the white/blue wire and ground. Battery voltage should be present with the ignition ON . If voltage is not present, check the white/blue wire from the igniter to the coil and test the ignition coil.
- Turn the ignition OFF . Check for continuity in the yellow/green wire between the igniter and the ECU.
Fig. Fig. 6: Terminal identification on 1990-91 Accords
- Check the blue wire for continuity between the tachometer and the igniter.
- Check the resistance between the terminals which connect to the blue and white/yellow wires. It should be between 1,100-3,300 ohms. If not, the igniter must be replaced.
Coil test:
1990-91 ACCORD
See Figure 16
- The ignition coil is contained within the distributor. With the ignition OFF , remove the distributor cap.
- Remove the screws securing the black/yellow wire and white/blue wires from the terminals. The black/yellow wire is connected to the primary positive terminal and the white/blue wire is connected to the primary negative terminal.
- Measure resistance between the terminals. Resistance should be between 0.6-0.8 ohms.
- Measure the resistance between the primary positive terminal and the secondary terminal. Resistance should be 12,800-19,200 ohms.
Fig. Fig. 16: Coil terminal designation on 1990-91 Accords
- All test conditions must be met. If any test condition is not satisfied, the coil must be replaced.
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