Hi All, Am new to the forums, i am having a mitsubishi galant fortis make and in the morning it gets rough idling when the RPM is between 900-800 but when it gets warn the rough idling disappears. Any one who has experienced this? swapped working throttle body and mass airflow sensor but they are not the cause .

 

have you tried changing the spark plugs?
is it possible bad gas?

 

Hi William, yes i have changed the spark plugs and also the gas has been refilled multiple times but still having same issue, i got another suggestion for fuel intank replacement which i haven't done