Engine Management Ligh on, but no errors.
Our Y-reg 156 1.8 Twin Spark has a problem with the engine management light coming on and staying on, when a diagnostics is plugged in it never shows any errors and to get rid of the light you have to reset the codes with the diagnostics (does this sound right?).
It is getting a bit annoying now, because it starts to make the car sluggish and also the trips to get it fixed at the garage (luckily a friend owns the garage and does it as a favour) but it is still a nuisance.
I was told that disconnecting the battery for a few minutes would solve it temporarily, but it hasn't worked.
Has anybody got any advice / help please?