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94fd lt10s no spark

Old 08-27-18, 09:18 PM
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94fd lt10s no spark

94 fd wont start. Running a lt10s not xbox to stock coils. I am unable to physically see a spark. Plugged up a spark plug to leading 2 and grounded the side. Set the laptop software to 0 cylinders. I can hear the injectors clicking but No spark. Tried it again with the other 3 wires, same thing no spark. First tested wires grey/red, grey/blue, grey/white, grey/green and saw that they are all grounded at key on and pulses ground when set to 0 cylinders. Is that right? Is that what its supposed to happen?
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Old 08-28-18, 10:17 PM
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Nvm thats normal
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Old 09-01-18, 04:19 PM
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Are you wired straight from ecu to the coils... or running through the igniter before the coils?
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Old 09-01-18, 04:33 PM
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Running through igniter before coils
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Old 09-08-18, 06:04 AM
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Based on getting the ground pulses from the ecu coils wires when set to 0 you should be seeing spark. So at least you know your ecu side should be fine. That leads to me think its something on the wiring side of the coil/igntier.
Is the igniter still powered?
How did you tap/tie into the ignited harness with the ecu wires?
Did you check if you coils are getting power when the key is switched on?
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Old 09-08-18, 05:12 PM
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Thank you. Ive been putting off checking the harness wires, turns out i had a disconnect at the harness.
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Old 09-08-18, 05:24 PM
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