Will be oxygen sensor, had exactly the same thing happen on mine when I had my cobra exhaust fitted, only my engine light came on about 5 mins down the road, done a quick u-turn back to the garage, plugged in the laptop, sure enough, oxygen sensor fault, got it re-set, light out, been ok ever since.
Just fyi ~ that post you quoted was from May 2013 so I think he'll have got it sorted by now. Or possibly have sold the car.
oh yeah....oops, my bad.