You would need to have the engine computer scanned for trouble codes to proceed.
Testimonial: "Had it scanned, p0300 code, random, multiple misfires. New plugs and wires?? What do you think?"
If the plugs and wires are original then yes they could be the cause.
I think both engines have coil on plug ignition, so no plug wires are used.
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SOURCE: how do you reset the check engine light on hyundai sonata?
Just disconnect your battery for a couple of minutes.
SOURCE: Locating and changing spark plugs on 2007 Hyundai Sonata 4 cylinder
They are directly below the coil packs (10mm bolts).
SOURCE: how do you replace the fog light bulbs on a 2007
Look under the bumper and you will see two large phillips head screws right in front of the wheels. Take these two screws out and bend/move the plastice piece out of the way. Now you can easily get to the bulb. There is a cap that twists off that protects the wires and back of the bulb. Twist this off and then remove the plug portion from the back of the bulb. The bulb then turns 1/4 to 1/2 revolution to loosen and remove. Reverse steps for installation.
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Had it scanned, code was P0300, multiple misfires, random, Could this just be that I need new plugs and wires?
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