Hi I have a skoda fabia 2003 elegance 1.4 16v

It has always juddered when changing gears or letting it roll in gear and been a bit shakey

but now when i cleaned the sparks the engine lights flashing and the exhaust sounds like it's blowing out every other second (misfire?)

pick up speed has become really slow now..

Any suggestions ?

THANKS SO MUCH IN ADVANCE.

FIT NEW SPARK PLUGS!

The old ones are knackered and cleaning them won't make any difference.

You probably also have at least one duff pencil pack or may have damaged the wiring to them.