986 Misfire 1 2 3 on idle - Variocam?

[Tinkerer]

Hi,

Apologise in advance if this has already been covered. I did have a good look through the forum first. I have a 1998 986 2.5 manual with 48k on the clock. It flew through MOT and the only issue is that on idle the MIL light comes up. On scanning it points to misfire on bank 1 2 3. A quick scan at the Porsche specialist says it's the variocam but without further testing or taking the engine apart they cannot be sure. They did say I could still drive it and live with the problem. Is that recommended or should I get it sorted? Has any got this problem and live with it? Other than this it actually drives great!