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Originally Posted by Davescort97
The intake on the plenum for the PVC valve is near the #3 cylinder. It could be stuck and be drawinig in too much air for #3 to fire. Replace the PVC valve. It's only a couple bucks and you can unplug the old and plug in the new yourself. First things first. Replace the spark plug and wire on that cylinder.
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I had this problem fixed by mechaninc. It turns out, the plugs were floating in water. This ruined the plugs and contaminated the whole area. They replaced my wires and I had already replaced the plugs. The corrosion in the block was causing the issue.
Today, I got a P0302 indicating the #2 misfire. I popped open the plugs wires and voila.... full of water.
I had to remove the top pan to get enough access to soak up all the water. I put it all back together and the engine is still sputtering. Misfire on #2. I'll bring it in tomorrow again so they can clean it all out again.
Watch for water/moisture in the plug areas.... no way to drain it.