Re: rough ideling XF HELP
Is your XF on gas... If so, it may have backfired at some stage on starting.
There is a spring in ontop of the airflow meter that is set at a specific tension. Backfiring usually wrecks the spring and it doesnt shut the flap properly...
This can also happen as the thing ages as well.. I know there are a few places that can retension them correctly. This might be a place to start.