Check engine light on
 

Morning! I've a Ongoing issue with eml on 99 turbo 2000, every time the weather takes a turn for the worst the check engine light comes on, after about half hour driving it go's out, never logs a fault, I'm guessing some wirings getting damp somewhere, checked everything I can see, had the ecu out to check and all seems ok, anyone had any similar issues? Help would be appreciated, driving me mad!

have you tried reading what the error code says ?
May help some what . . . . . . .

Tried, It's not logging a fault.