20 Most Recent 2014 Mitsubishi Outlander - Page 9 Questions & Answers

check the flasher unit. most auto part stores will assist you

Are you going by the gauge that says fuel economy on the dash, if so try to zero out the gauge or reset it ,this will recalculate the reading.

There should be a manual pull probably inside the trunk at or near the area of the fuel door.
If you have a manual, the location would be shown in it.
Gary

maybe dead rat in air vent or air intake,fan,etc.

Its a good idea to change plugs every 50K miles...so go ahead.
By looking at the plugs you can check engine's health.

With no codes...I'd suspect a fuel leak somewhere...

Hope this helps...