1993 sunbird 3.1v6 running on 4 cylinders

1993 ALL OTHER MAKES ALL OTHER MODELS
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SNYDES65COUPE
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1993 sunbird 3.1l v6 auto 207000km
My 1993 sunbird is running on 4 cylinders the coil for cyl. # 1 &4 is not firing tryed different coil still no spark. how do you check the box it pluges into?
Jan 18, 2007 at 8:12 PM
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SNYDES65COUPE
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I changed the dis box, coils, wires. keep geting no spark on 1 & 4, could it be the cranksensor. put a code reader on it and keep geting #12 none of my books have a #12
Jan 29, 2007 at 8:14 PM