Thread: please help
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Old Jan 24, 2007 | 07:54 PM
  #9  
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bob01721
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From: Orlando, FL
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You don't have to remove the coil to check it, but you'll need an ohmmeter. And you'll have to know how to use it (isolate the circuit so you don't toast the meter...).

There are three terminals of interest on the coil. There're the A (+), the B (-), and the secondary. Not sure about your car, but a common Honda set-up is BLK/YEL for the A and BLU or WHT/BLU for B. The secondary is the big wire that goes to the distributor.

There should be "about" an ohm between the A and B terminals. This is the primary winding. From A to the secondary should be somewhere "around" 12K to 35KΩ. This is the resistance of the secondary winding. If either of these resistance readings are way off, the coil is probably bad.

The plug wires should have "around" 25KΩ of resistance. Replace 'em if they have more.
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