2nd Generation Specific (1986-1992) 1986-1992 Discussion including performance modifications and technical support sections.

Leading Spark issue

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Old Jun 15, 2007 | 09:42 AM
  #1  
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FKITALL
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Leading Spark issue

I seem to be haing a spark issue. Yesterday, I was installing a E-Fan. I had also just installed my Crane Hi-6 Ignition. The car ran great on the new ignition. Soon after installing the EFan, my problems began. Its a Taurus E Fan FYI. After properly installing the fan, my ignition seems to stop working. I seem to be getting lazy spark? I swapped out my Crane ignition for the OEM one. Same thing. Seems to be little no spark. It sparks like once twice a second. I am getting power to the ignitors. It does give some spark, just not much. Any ideas?
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Old Jun 15, 2007 | 10:03 AM
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FKITALL
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I just cranked over the car for 5 seconds. Pulled the leading plug. Shouldn't there be some wet gas on the plug? Dry as a bone.
1. little to no spark. Pulled the plug to look for spark. All I see is one single spark coming from the plug, then nada.

2. Plugs not getting wet.

Last edited by The Wankler; Jun 15, 2007 at 10:12 AM.
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Old Jun 15, 2007 | 10:24 AM
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Is you fan load current source to the relay comming off the battery or from IG1?
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Old Jun 15, 2007 | 12:16 PM
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The main red wire is coming off the battery.

I have the fan disonnected right now.
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Old Jun 15, 2007 | 12:53 PM
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Just swapped in another ECU, no change. I bet this is something real supid...
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Old Jun 15, 2007 | 02:42 PM
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I'd start by checking the switch-on voltage in IG1 & IG2.
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Old Jun 15, 2007 | 03:00 PM
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I get 12v up to the main relay. But from there to the coils, nada. I do not get any voltage at the cpu as well. Could the Mian Relay cause this? I also just realized, I had a couple wires backwards when I wired the Crane Ignition in. The ones that go to the Main Relay.
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Old Jun 15, 2007 | 03:13 PM
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Bingo - you're on it.
Either the main relay has a problem or it's stator coil not getting energized.
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