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spark at coil, no spark at plug, continuity in rotor, cap & wires

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Old 01-28-2016, 12:16 PM
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Default spark at coil, no spark at plug, continuity in rotor, cap & wires

Greetings all. I'm a new guy here looking for some help. I have a '94 Civic DX (1.5L, D15B7, approx 180k miles). My daughter drove it to work the other day and when she finished her shift several hours later it would not start. It cranks, but won't start. It has no spark at the plugs (the terminal end of the plug wire to be exact), but does have spark at the ignition coil. It has continuity through the distributor cap, the rotor, and the one plug wire I checked (I didn't measure the amount of resistance yet). I cleaned up the terminals in the cap and on the rotor and checked everything again just to make sure--same results: spark at coil, continuity throughout, no spark at plugs, cranks but won't start. Any ideas on what might be wrong?

Blessings,
Scott
Old 01-28-2016, 01:05 PM
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Default Re: spark at coil, no spark at plug, continuity in rotor, cap & wires

Ohm test the coil and replace all old ignition parts (plugs, wires, cap, rotor).
Old 01-28-2016, 01:06 PM
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Default Re: spark at coil, no spark at plug, continuity in rotor, cap & wires

How were you able to verify spark at the coil?
Old 01-28-2016, 01:07 PM
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Default Re: spark at coil, no spark at plug, continuity in rotor, cap & wires

Tony, it does have spark at the coil.
Old 01-28-2016, 01:14 PM
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Default Re: spark at coil, no spark at plug, continuity in rotor, cap & wires

Tony--sorry, I misread your message. I grounded some spare electrical wire to the car and held the other end 1/4 inch from the coil output spring while cranking it. Observed spark.
Old 01-28-2016, 01:20 PM
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Default Re: spark at coil, no spark at plug, continuity in rotor, cap & wires

I would just do as Ron Burgundy stated, ohm the coil, spark could be weak.
Old 01-28-2016, 01:23 PM
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Default Re: spark at coil, no spark at plug, continuity in rotor, cap & wires

Originally Posted by tony_2018
Ron Burgundy
Hey, I regret that!
Old 01-28-2016, 01:24 PM
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Default Re: spark at coil, no spark at plug, continuity in rotor, cap & wires

Will do. Any idea on what the resistance should read?
Old 01-28-2016, 01:24 PM
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Default Re: spark at coil, no spark at plug, continuity in rotor, cap & wires

See FAQs sticky.
Old 01-28-2016, 01:25 PM
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Default Re: spark at coil, no spark at plug, continuity in rotor, cap & wires

Great. Thank you both very much.
Old 02-02-2016, 08:57 AM
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Default Re: spark at coil, no spark at plug, continuity in rotor, cap & wires

It was indeed the coil. I've very grateful for your help!
Old 02-02-2016, 02:46 PM
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Default Re: spark at coil, no spark at plug, continuity in rotor, cap & wires

When getting really technical your ability shines, don't red neck it. Just because you got spark doesn't really mean anything.
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