Low gas economy on focus 2003 - 1994 Honda Accord

Many things can contribute to low fuel economy, tire pressure, driving style, milage, and state of the servicing.
What sort of milage does the car have?
Has it had a tune up recently?
Air filter condition?
Fuel filter condition?
Transmission service if milage dictates?

You might enjoy reading the Top Ten Factors Contributing to Fuel Economy:
http://www.driverside.com/auto-library/top_10_factors_contributing_to_fuel_economy-317 and Save Gas and Increase Horsepower by Side Gapping Spark Plugs

http://www.instructables.com/id/Save-Gas-And-Incerase-Horsepower-By-Side-Gapping-S/

TSB 7/2006
Subject/Concern: Hesitations; Poor or no start; Deteriorated fuel economy; Diagnostic trouble codes (DTC) P1412, P0490 and P1335 stored
Model: Focus C-MAX 2003.75 (06/2003?¿½) Build Date: 14.02.2004-01.03.2006
Build Code: 4R-6S
Assembly Plant: Saarlouis
Engine: 2.0L Duratorq-TDCi (DW) Diesel
Focus 2004.75 (07/2004?¿½) Build Date: Up to 01.03.2006
Build Code: Up to 6S
Assembly Plant: Saarlouis
Assembly Plant: Valencia
Engine: 2.0L Duratorq-TDCi (DW) Diesel
Markets: All
Section: 303-08
Summary


Should a customer express concern about one of the following:


* hesitations,
* poor or no start,
* deteriorated fuel economy,
and upon investigation diagnostic trouble codes (DTC) P1412, P0490 and P1335 are stored in the powertrain control module (PCM), the probable cause is a sticky exhaust gas recirculation (EGR) valve.


To rectify this concern, a new EGR valve with a stronger EGR valve motor and revised PCM calibration should be installed.

The most likely problem is that the gas you bought most recently was a "summer blend" designed to give you LESS MPG! That's because the companies want more profits, NOT better fuel economy, which would give those companies LESS profits instead of MORE profits!

I don't think you'll ever beat what you're getting for mileage now. Those numbers are really good.Improving performance usually sacrifices economy.

Yes. Overdrive helps get better milage in all vehicles. It is simply put, just an extra gear. When you go through 1st, then 2nd, 3rd, then OD (in automatic - 5th gear in manual)

All it does is allow the engine to run at lower speed while maintaining crusing speed. It does not have a lot of power, it's notsupposed to. It is to save fuel at higher speeds, particularly over distance travel..

In city driving it can slow the changing of gears. Better to turn it off for more low speed control.

Awd is on demand 4wd, better fuel economy
4wd high is locked in high range
4wd low is lock in low range

this is your over drive indicator light. there should be a button on the shifter to turn it on and off. this is your highway cruising gear for better economy.

nope not a fuse prob.. most likely the fuel pump itself. there is a small chance it could be in the wiring back to the pump also but the pump is most likely the prob.

In my opinion it sounds like a problem from inside the fuel tank but don't quote me on this. With multiple sensors and switches related to fuel movement throughout the vehicle you're truly better off having a professional deal with this, unfortunately it will cost a few dollars.