Hi I had the same problem as you describe it turned out to be the camshaft position sensor bought a new one off ebay cost £20 and has been fine since.
Starts and runs superb hope this helps you.
Phil
Sent from my SM-G900F using Micra Sports Club mobile app
Thanks for the info Frank, fitted the new camshaft position sensor yesterday and all seems to be fine running smooth and the choke even works
Sent from my SM-G900F using Micra Sports Club mobile app
Thanks Frank I am trying to locate the position of the camshaft position sensor at bank 1 I believe it is under the top engine cover by the air filter but not sure though. Phil
Sent from my SM-G900F using Micra Sports Club mobile app