INSPECTION OF ELECTRODES
| CONDITION | DARK DEPOSITS | WHITE DEPOSITS |
|---|---|---|
| DESCRIPTION | Fuel mixture too rich Low air intake | Fuel mixture too lean Advanced ignition timing Insufficient plug tightening |
INSPECTION OF ELECTRODES
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- Check the electrode gap (A). Standard (New) 1.0-1.1 mm (0.039-0.043 in.) - Unleaded
- Carefully remove the spark plug cable by pulling on the rubber boots (A). Check the condition of the spark plug cable terminals (B), if any terminal is corroded, clean it, and if it broken or distorted, replace the spark plug cable.
- Connect the ohmmeter probes and measure resistance. RESISTANCE: 5.6Kohms/m +/- 20%
- Resistance should not be higher than 10Kohms per meter of cable. If resistance is higher, replace the cable.
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- Measure the primary coil resistance between terminals 1-2 and 1-3. Measure the primary coil resistance between terminals 1-4, 2-4 and 3-4. Standard value: 0.58ohms +/- 10% (2.0L) 0.96ohms +/- 10% (2.7L)
- Measure the secondary coil resistance between the high-voltage terminal for the No.1 and No.4 cylinders, and between the high-voltage terminals for the No.2 and No.3 cylinders. Standard value: 8.8kohms +/- 15% (2.0L) 12.5kohm; +/- 15% (2.7L) CAUTION: Be sure, when measuring the resistance of the secondary coil, to disconnect the connector of the ignition coil. Measure the secondary coil resistance between the high-voltage terminals for the No.1 and No.4 cylinders, No.2 and No.5 cylinders and No.3 and No.6 cylinders.
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- Remove the engine cover.
- Disconnect the spark plug cable and connector.
- Remove the ignition coil (A).
- Installation is the reverse of removal.