Ford Focus Forum, Ford Focus ST Forum, Ford Focus RS Forum - View Single Post - Lost MPG in My Newly Aquired Focus [Q]
View Single Post
Old 09-19-2012, 06:23 PM   #15
fullerp
Focus Rookie
 
Join Date: Aug 2012
Fan#: 102859
Location: Hazel Park, MI
What I Drive: 2012 Ingot Silver 5 door Titanium

Posts: 6
FF Reputation: 1 fullerp Good Standing Member
Buy-Sell-Trade Rating: (0)
This is the order I'd check things.

Check tires for proper inflation.
Change oil and filters (air, oil, breather, fuel, cabin) Do them all, don't be a wussy.
Plugs.
Wires.(Mikes right, no wires. Disregard this line)
Mass air flow sensor.
(edit: EGR Valve, then DPFE Sensor http://www.focushacks.com/mod/DPFE_S...GR_Information
O2 sensor
Compression Test.
Ignition Coils.
Give it to the dealer and have them test it.

Start at the top ignore all the ones you've already done, and feel free to also do other peoples suggestions.

Last edited by fullerp; 09-19-2012 at 08:24 PM.
fullerp is offline  
    Reply With Quote