I own a Ford Focus 1.6 2003 with about 186000km on the clock. It never gave me any kind of a problem for the past 7 year. Recently it started showing an engine light. This happened every time after gas tank refill and switched itself off after a while.
The past few days it started jerking whilst in motion and an engine light is back on it doesn't go off this time. I have changed the spark plugs but that didn't change anything. Any idea what could be the cause.
Thank you in advance.
The other thing is I just noticed it also loses power like is cutting off gas. I also flushed the petrol filter because at fist I thought was something to do with fuel line.
Please help