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bazar01 bazar01 is offline
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Join Date: Mar 2004
Location: Leesburg, Georgia, USA
Posts: 1,701
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If the secondary ICU (ignition control unit) and coil work, then the problem is in the main ICU and coil circuit.
The firing signal only comes from one pin on the DME to both the main and secondary ICU. So it cannot be a missing firing signal.

It could be a bad main plug/wiring or a bad main ICU. Swap the main and secondary coils too to confirm.
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1993 964 C2 still makes me smile
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Old 01-30-2017, 07:49 AM
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