My darling daughter now is the proud owner of the ( Was mine ) TS V6 Magna. There has been an itermittent stutter in the 80km zone . Oringinaly I thought O2 sens. but she told me the thing comes back to normal if you give it a quick stab or 2 on the go pedal. So with out going and spending cash on both .. any sugestions. The car was ony serviiced 2 k back > 153,000 on the the clock. No leaks of any kind and the best interior for a car that is 19 years old I've seen. It is a bit of a puzzle as sometimes it seems to be an O2 prob but with the new info maybe a blocked fuel filter. As most of you all have more knowledge on this, than myself , I thought I would ask the experts first. thanks all

Try disconnecting th o2 sensor and driving it. If its that, it should drive better unplugged