Hi, as you changed the oil only 100miles ago I'd definitely check the oil filler cap...check its sealing correctly and forming a vacuum.
I had exactly the same thing on a Peugeot 207. I changed the oil and a day or so later the engine management light came on. Turns out the rubber seal inside the cap had split causing a leak. Once it was sorted the management light went out after a day or so - it only resets after its performed several cycles of no faults.
|