Missing in cylinder 1 - Are there any people who know how to read spark plug color?

[Dragonhunt]

I have a 2000 Mustang V6 with auto transmission with 90,000 miles on it and NO mods done.
Issue:
The engine gives me a constant Code of 0301 - Missing in # 1 cylinder. (Attached in a picture of the current spark plug that is it) with about 15,000 miles on them

I have the EGR Valve Vacuum unplugged because when it is hooked up, I get a very bad miss (under load between 1200-1500 rpms)

This is what I replaced.

New Accel Coil - The factory one had a short in it.
Cleaned the Mass Airflow Sensor
New PCV Valve
New EGR Valve
New Spark Plug wires
New Air Filter
New Camshaft Syncronizer

 

[junior19]

are you getting any fuel to that cylinder and check to see if that spark plug wire is sending power to the spark plug. just get a used spark plug thats good and connect it to the wire with out installing in engine start the car up you should be able to here it spark and if not look at the spark plug for a spark.

 

[MustangLX-5.0]

The plug looks ok, but it also looks like that cylinder has been running a little too lean. You said you replaced the EGR valve, are you getting any other codes besides the misfire? Were you having this problem before you replaced the EGR valve? Check the valve mount and make sure it is tight and also that there are no vacuum leaks. Cyl 1 may be the closest cylinder to the EGR flow. It's possible that too much exhaust gas is getting dumped down cyl 1 and causing an over lean condition. If this is the case, then the problem could be the DPFE sensor. It's part of the EGR and is responsible for adjusting a vacuum to the EGR valve itself. If the valve isn't faulty, then chances are that the DPFE is.

The grayish color on the plug could indicate a lean condition. Meaning the gray is from the plug getting too hot. Take a look at one of your other plugs for comparison.

Oh, and also do what junior noted. Get another spark plug and test. Put the new plug in and connect the EGR. See if you still have this problem. If it goes away, chances are that your problem may or may not return later. The old valve could have been at fault.

Check all the above first to rule as much out as possible.