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Optispark base timing?

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Old May 5, 2014 | 05:42 PM
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Default Optispark base timing?
Does anyone know if the Optispark has any initial timing built into it, or is it set at zero?
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Old May 7, 2014 | 08:47 AM
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Originally Posted by MrWillys
Does anyone know if the Optispark has any initial timing built into it, or is it set at zero?
Im pretty sure its 0....all timing is commanded by the pcm.
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Old May 7, 2014 | 11:24 AM
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Mechanically, it has to be set at "0" b/c one of it's primary functions is to tell the ECM where TDC is on each cylinder. Each low res window should clear the light beam at 0*/TDC for each cylinder.
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