I HAVE just bought a 2001 VX Berlina wagon with 90,000km on the clock. If it has been idling for more than about two minutes and I take off a little hard, I can feel a noticeable flat spot.
THE flat spot sounds like fuel vaporisation. Fuel can vaporise in the fuel rail because of the heat generated while sitting idle, and it can cause a slight misfire when it's time to go. Get the fuel pump checked to see if it's delivering its full flow of fuel. Also check the fuel-pressure regulator to see if it's maintaining the correct fuel pressure.
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