I've got a Kia with the 2.0T Hyundai Theta II GDI engine. I changed the plugs. Followed some good DIY instructions. Easy enough. Start up the car. Sounds normal. Drive it around the block. Drives like usual. When I get back I notice that there's white moist smoke/vapor coming out the tailpipes. Google it a bit and find a wide variety of explanations/concerns/issues. I decide to loosen up the plugheads (or whatever they're called), pull them up and push them back into the plugwells to make sure they're making good contact. It's hard to tell if they are or not. Seems okay. Start up the car, go around the block again. Same thing. Any ideas?
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