sooty spark plugs

[basykbm44]

I'm so sorry. English is not very good
s14 my vehicle. my car stopped, to increase and have a misfire and fuel. spark plugs pulled it out I saw blackened. install new spark plugs in my car. problem is resolved. 400 km of roads, but then again the same problem I did. What should I do.

please help me..thanks

new spark plugs in the sooty

[Sileighty_85]

too much fuel, check for air leaks, and clean Air Flow Sensor