I star5ed seeing the olod Check Engine light. So I checked engine oil
(OK) coolant (OK), brake fluid level etc etc.
I read around here and tightened the fuel cap. The light was coming on
intermittently, and at vastly varying periods of driving. Turning the
ingnition off and on would reset it, until it started again.
It become more and more frequent. I was starting to get frustrated.
Then I filled the windscreen washer fluid....and it stopped the next
drive and has not recurred for 5 all-day journeys since.
Luck or truth? I did nothing else.
Thanks for your input.