i have had my polo since febuary and i hope to use it to learn to drive in but at the moment it has a missfire when the gas is opened up slightly and when driving at low speeds it judders as if i am pressing and depressing gas repeatedly. i have changed the plugleads and the dizzy cap like my dad told me to but this hasnt solved the problem. any ideas?

help would be much appreciated

Could be a number of things. Try checking your earth straps and all wires. It could also be your blue temp sensor or hall sender.

ill tell my dad and see what he says

cheers

nother possible cuase is the head might be going. just check under the oil cap to see if there is any white gue. bit of a long shot but worth trying

check the brake servo vacuum hose as if this has a split it too can cause running problems