Spark plugs

[lhanscom]

This has nothing to do with my bike. That said, I'm having some problems with my car, it's idleing rough, and lacks on power. Almost feels like a cylender isn't firing, but all cylenders seem to be firing. So I pulled the plugs to see what I see. And I find that the end of the plugs on the threads, and half of the center was black. Then the other half of the center of the plug was white. What does this mean? All four plugs were the same.

BTW this is a fuel injected inline 4 toyota engine.

[Anonymous]

Just resolved a similar problem on my old Ford. In my case it was the plug wires. The telltale sign was that I had no "Check Engine" light and it was worse under acceleration. On the Ford, that meant that the ignition system was breaking down. Don't know much about foreign cars but plenty about my GS. Good luck.

[lhanscom]

Thanks that sounds like a good starting point.

[saaz]

Plug wires, distributor rotor are often the main culprits