EFII rough idle
My EFII is not behaving at the moment.
It will run OK, and idle smoothly, then at
other times when I start the car it doesn't
idle correctly and if you drive it, backfires.
Then if you try it again the next day it runs
OK again for a couple of days, then shits itself
I have not noticed any patern in when the idle
stuffs up. It is a random event.
Any ideas what could be wrong ?