I thought about that particularly as I have changed the lambda sensor (which cleared the sudden power loss and rough running). From my reading if the MAF was faulty it's unlikley it would show on the OBD2, so I thought I would leave it till the next MOT in a couple of months. Would show up as a...
I have had my Micra now for about 6 months. Wasn't running brilliantly to start with but fitting correct spark plugs and new fuel and air filters improved it. After some reading on this web page I checked the ODB2 and changed the lambda sensor. Exhaust doesn't stink of petrol, fuel consumption...