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1991 964 C2 Ignition problem--Car runs on only one distributor

Electrical and Electronic

Vehicle Information: Year: 1991; Body Type: Targa; Engine (type, size, modifications): standard; Total Mileage: 100k;

Car runs on only the rear of the two coils.The front coil has to be unplugged at the coil control module located in front of the front coil, in order for the car to run. If the front coil is then connected, by plugging in the front coil module electrical connector, then the car dies and/or will not start. Only six of the twelve plugs are firing and the car runs with a slight miss, but lacks power and response. Plugs and wires check ok. Coil control modules replaced.

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