How do you fix a P0303 cylinder 3 misfire detected code on a 2000 Ford Mustang GT?

Answer 1

I would start by checking ou that cylinder. Look for a burnt boot for the spark plug that could cause a misfire. Is the wire seated correctly on the plug? This should not be a car with coil on plug ignition I do not think, but if so, the coil itself may be bad. Be sure the hole where the plug is sitting is not filled with water or anything else. And your third cylinder in the third one from the front on the passenger side its not a direct fire ignition car just check the plug(the side where the electrode is going into the motor) for black or white marks the plug is most likely fouled out replace the plug gap it correctly and stick it in and your ready to go