Ignition Coil Malfunction? - Ranger-Forums - The Ultimate Ford Ranger Resource


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Old 02-17-2010
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Join Date: Feb 2010
Location: Winnsboro
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Ignition Coil Malfunction?

My check engine light is on, the code that comes up is po352 (ignition coil B primary/secondary malfunction). I replace the plugs and wires, this helped a little (the plugs were pretty worn) ,but the CEL is still on and it is running rough. Next I replaced the ignition coil, still the CEL is on and it is running rough. I pulled the fuel pump fuse and pulled each spark plug out and checked for a spark when it was cranked. All but coil number 3 had a spark, and I check the wire and plug on another coil their both good.
So, I put a new coil pack in and coil number 3 was no power. Is it possible that I got a bad coil or is there something between the coil and PCM I need to check?
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