how can i fix my vw golf 1.4 se?

i have the same problem its shudders when its on idle. when i hold the gas down at just say 2000 revs for a constant period of time it seems to jump up and down the revs by its self even though im actually not pressing any harder on the gas. im kind of hoping it nothing special, some on mentioned changing the lambda sensor which ive done to no effect.

carl
December 2009

tick over too low turn up trottle a bit till ok when warm ondly

eamon
January 2005