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I changed my spark plugs cleaned maf sensor with cleaner. The Fuel Pressure regulator is still good. I check spark plug wires there ok. It rides cleaner but i feel like the is still a low and high accelerating I tried to look for any leaked hoses or vacuum hoses. Do you have any other ideas that could cause does codes and the hesistating on rpm.
My car has 218067 miles.
My car has an automatic transmission.
The OBD-II trouble code P-0304 indicates that cylinder four is misfiring or having ignition issues. The most common causes include a faulty spark plug, clogged fuel injectors, or even an intake valve leak. To know for certain, you might want to have a professional mechanic complete an engine is running rough inspection so they can pinpoint the source of this issue you're experiencing.
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