Fuel consumption is too high, why? - 2006 Suzuki Vitara

high fuel consumption Petrus, sticking E brake, poor gas, tune up needed, lazy O2 sensor,
leaking injectors, driving habits, etc. all can cause more fuel consumption. Have it scanned to help determine cause.

check for codes and data readings. check O2 sensor readings, is the thermostat tired and not working properly, this can cause high fuel consumption. take a close look at who and how the car is being driven.

1. Check if the ECU is throwing any error codes.

Could be
2. O2 sensor(s) or/and clogged Cat converter
3. Dirty air cleaner
4. leaking injectors
5. Worn or broken rings: check the wet and dry compression.
Might even be the ECU itself, running in "limp" mode because of a partial board failure.

Do you have black smoke or what looks like soot coming out of the tail pipe. The check engine light monitors fuel pressure through the computer and pressure regulator. It will come on if the pump pressure is too high or too low. If the pressure regulator is faulty it could cause excessive fuel consumption,

what motor do u have in the car , there are only a small number of things you can do to help this , a good tune up , K&N air filter , headers ,good tires with proper air . make the car lighter depending on the size of your motor these are the main things you can but if you have a big block motor in yout car , get another car , if you have a 4 cyl already , you really are getting good milage per gallon , get a bike if you are a cheap skate

IN order to improve fuel consumption you must make the engine run more efficiently. here are the most important ways.
typical maintenance. (check the manual)

1. check air in tires
2. oil and oil filter change
3. spark plugs change (TUNE UP)
4. air filter change


you personally can do most of these things. go to local walmart and get most of these items. very easy.

good luck.

name how high. is high. RATES?
keep in mind MPG varies by load , driver and tire pressure.

The air filter will affect mileage if it hasn't been changed in a while. The injectors may be sending too much fuel either from wear or a map sensor problem.

For sure the fuel consumption if very high specially if you are a moderate driver and do not drive at very high RPM. Now the possible areas to check must be the fuel pump calibration and the timing. If this is out of order/settings then the fuel can be wasted without utilization which can result in high consumption.

The fuel consumption sounds about right for a turbo, perhaps a little high. Hwy consumption depends on how you drive. If you cruise at 100 kph, you should get around 8 L/ 100km. Round town, about 10 L / 100km.