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MetroMPG · 02-29-2012, 07:57 AM

If your O2 sensors are bad, I'd move them to the top of the list (assuming the part of the exhaust system they screw into is still solid!). You probably already know that if they're sending faulty feedback to the computer, the air/fuel mixture could be out of what - potentially richer than need be, wasting fuel.

Got a fuel economy display in the car? That'd be my 2nd mod.

Welcome to the forum!

02-29-2012, 07:57 AM	#2 (permalink)
MetroMPG Batman Junior Join Date: Nov 2007 Location: 1000 Islands, Ontario, Canada Posts: 22,541 Blackfly - '98 Geo Metro Team Metro Last 3: 70.09 mpg (US) MPGiata - '90 Mazda Miata 90 day: 54.46 mpg (US) Appliance car Mirage - '14 Mitsubishi Mirage ES (base) 90 day: 51.82 mpg (US) Thanks: 4,085 Thanked 6,989 Times in 3,619 Posts	If your O2 sensors are bad, I'd move them to the top of the list (assuming the part of the exhaust system they screw into is still solid!). You probably already know that if they're sending faulty feedback to the computer, the air/fuel mixture could be out of what - potentially richer than need be, wasting fuel. Got a fuel economy display in the car? That'd be my 2nd mod. Welcome to the forum! __________________ Project MPGiata! Mods for getting 50+ MPG from a 1990 Miata Honda mods: Ecomodding my $800 Honda Fit 5-speed beater Mitsu mods: 70 MPG in my ecomodded, dirt cheap, 3-cylinder Mirage. Ecodriving test: Manual vs. automatic transmission MPG showdown EcoModder has launched a forum for the efficient new Mitsubishi Mirage www.MetroMPG.com - fuel efficiency info for Geo Metro owners www.ForkenSwift.com - electric car conversion on a beer budget