Runs with spark not inverted, won't run with it inverted. - Miata Turbo Forum - Boost cars, acquire cats.

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Old 05-18-2006, 01:36 PM   #1
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Default Runs with spark not inverted, won't run with it inverted.

I know all the miata MS users use inverted spark, but I just tried non-inverted for the heck of it and it runs pretty well. I didn't let it run long because the ignitor started getting hot. So, is something ***-backwards in my car? What should I check?
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Old 05-18-2006, 03:49 PM   #2
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I changed the resistors on the LEDs to 330s, and now the car runs the same with inverted on or off - on one or two cylinders.
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Old 05-18-2006, 11:09 PM   #3
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Are you only running on 2 cylinders?
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Old 05-24-2006, 11:05 PM   #4
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What was the fix?
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Old 05-28-2006, 11:57 AM   #5
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He had connected the spark output leads to the wrong side of the resistors.

It should be like this: https://www.miataturbo.net/forums/at...5&d=1148236634

I'm going to get some 1.8L coils to play with see if I can get them working right.
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