Code P0304

supercommuter · Post by **supercommuter** » Wed May 11, 2011 4:19 pm

Just got a CE and the code is P0304. Car is running fine, new plugs, just changed the oil last week, new PCV valve. 162K miles. Any ideas?

00Neon RCR · Post by **00Neon RCR** » Wed May 11, 2011 4:32 pm

That's the 4th cylinder misfire code. Pull the spark plug boot off on the forth cylinder and see if there is like a white/greyish ring around it. If so than it's misfiring. If not it could still be misfiring since it's throwing the code. Replace the wires ever? Could be coil pack. A defective plug. Bad wire. And possibly more. Keep us posted. I'm sure Bill, Frank, or Dante will chime in soon.

supercommuter · Post by **supercommuter** » Wed May 11, 2011 5:25 pm

Thanks. I replaced the plugs, but not the wires. I guess I'll do that next.

00Neon RCR · Post by **00Neon RCR** » Wed May 11, 2011 5:31 pm

supercommuter wrote:Thanks. I replaced the plugs, but not the wires. I guess I'll do that next.

wouldn't hurt

Goodluck