Has anyone else had this kind of plug problem? Just noticed it today when I was searching what caused bad idle. The center electrode has moved about 1mm as seen in the picture. Otherwise it seems okay. The plugs are motorcraft AGPR902P and they are driven with zetec-e coilpack. The car has currently about 400-450bhp and 1.5bar of boost. Fueling and the preturbo temperatures have always been okay. Have I had just bad luck or what.

 

Try some different spark plugs
9s or nippon densos,

 

Never seen that before

Sorry can't help you with any information

Steve.

 

Funny, I inspected yesterday the other plugs and one of them was also bent, but not as much as the one in a picture.