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No leading spark?

Old Nov 24, 2005 | 01:28 AM
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No leading spark?

My friend just got a 3rd gen for $3500 but it wont start. we pulled all the plugs and the leading plugs dont spark but the trailing do. therefore the car wont start. niether of us know much about 3rd gens so what do you think the problem could be? Thanks
Charlie
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Old Nov 24, 2005 | 01:59 AM
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leading coil...or leading coil harness.

Directly under the throttle body, there are three coil packs. The one in the middle runs both leading plugs. check to make sure the connector is on and there arent and broken wires or anything.
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Old Nov 24, 2005 | 01:07 PM
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id go with coilpack as well
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Old Nov 24, 2005 | 05:07 PM
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https://www.rx7club.com/forum/showthread.php?t=485078
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Old Nov 24, 2005 | 09:34 PM
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thank you for pointing out his "buddies" Thread, but in all seriousness will this probably get the car to run again, if i get spark in the leading coils??
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Old Nov 25, 2005 | 02:35 AM
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it could possibly make it run again. Without leading plug spark, it will run VERY poorly and most likely not at all. Obviously if you arent getting spark on the leading plugs, you will have to replace the leading coil or its harness. so its a starting point.
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Old Nov 25, 2005 | 09:57 AM
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Originally Posted by theo481
thank you for pointing out his "buddies" Thread, but in all seriousness will this probably get the car to run again, if i get spark in the leading coils??

The car should and will run if you atleast have leading coil spark, I have had occasion where the trailing plug wire has come loose or been knocked off and wouldn't have know it other than a visual inspection turned it up. Are you getting your CAS signal, may want to check the ignitor under the power brake booster for damage. I've seen where people have drilled through the fire wall to run a wire or hose and damaged a wire on that, the car will run as long as the key was held in the start position, but would die as soon as it was released to the run position.
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