Pirate99gs

Hey everyone

Tonight my s70 (NA, 190000km) decided to act drunk on me tonight. When starting up, it seemed to be running rich, with a rough idle and hesitation under acceleration. The engine light was flashing at around 2000rpm and under heavy acceleration, and remained lit at crushing speed. Which of the following problems (plugs, coils, etm, maf) should I be looking at first? Presently I want to discount the etm, due to the fact that it does not show the telltale signs of imminent failure (idle surge, going into limp mode). This problem showed up suddenly, and hopefully there is some tests that can be run beforehand to diagnose the problem.

Thanks!

Pietet