Its only recently started to happen, but sometimes when i start my car up (mark 4 1.6 twinport) it revs itself for about 2 or 3 minutes, and then settles down. If i rev it hard it clears, and if i switch it off then on again it clears. No lights have come up on the dash, and im not 2 sure what to do!
Should i perhaps look into changing the plugs and cleaning the throttle body?
Oh and the dam thing sounds like a diesel now and then, not like my corse that was smooth sounding like a petrol should be!