Q: High fuel consupmtion

asked by on November 03, 2016

Hi my car fuel consumption is very high it consumes 20 liter for every 120 km . Is there any way to fix it
My car has an automatic transmission.

Hello there. Many common faults will cause your 1990 Toyota Corolla to consume excessive fuel. The most common causes are leaking fuel injector, vacuum leak, a faulty MAF sensor, fuel leak, spark plugs, plug wires, or an ignition coil. If you would like to have a thorough check for this problem, a qualified technician, such as one from YourMechanic, will be able to diagnose the excessive fuel consumption and perform any repairs required to resolve the issue.

The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing


Experienced Mechanic?

Earn up to $70/hr

What others are asking

Trunk not closing
The latch is most likely to blame. The latch is on the trunk lid, the striker is bolted to the bottom. Check the lever in the latch is not partially closed. Have someone hold the trunk release lever, take a...
Clutch issues
I have seen some flywheels that after the resurface is done and the clutch and pressure plate is installed the bolts will bottom out and not fully seat the pressure plate. This will cause the clutch to not disengage all...
Antifreeze emptying out fast
Hello. If this happened right after the work was done, then it is typically caused by a hose that is loose or the thermostat (https://www.yourmechanic.com/services/thermostat-replacement) not being installed right. If you cannot see the leak, then the system will need...
Engine seized...rods shot out both sides of engine block.
Hello. To answer your question, yes, the lack of an air filter (https://www.yourmechanic.com/services/air-filter-replacement) can cause catastrophic engine damage. Over time, the debris will build up inside of the engine as it mixes with air and other carbon contaminates. Eventually, it...
Radio and AC buttons don't work
Hi, thanks for writing in. I would recommend having all of your fuses checked first. It is unlikely that both of those control units would go bad at once. Here at YourMechanic, we can have a technician come to your...
safe jack points with floor jack
Many vehicles are safe to jack up on the axles, control arms, subframes, and sometimes the pinch weld. Be careful lifting on the pinch weld of some vehicles as it can cave in and cause seriouse body damage. If you...
Lack of power at full throttle.
Hi there. Your scooter has a fuel flow restriction which could either be in the tank, lines, or carburetor itself. Let off the throttle and open the throttle again. If the scooter fixes its self, then the float bowl in...
Car shakes, lights dim, won't accelerate
Shaking or vibrating may be caused by many different things such as faulty spark plugs, poor fuel pressure or misfires. Other things such as a faulty idle air control valve (https://www.yourmechanic.com/services/idle-control-valve-replacement) may cause the engine idle to drop below the...
Continuous camshaft adjustment (LEFT): Incorrect position of the exhaust camshaft (P0025)"
The P0025 code is telling you that the exhaust camshaft timing is running late. This is not necessarily a sensor issue, but more likely a mechanical one. The variable camshaft timing is controlled by a hydraulic device that is part...

Related articles

Does Buying Good Quality Gas Matter?
Gasoline Gasoline is refined from crude oil and can contain impurities and minor inconsistencies. Because of this, it is standard practice for additives to be mixed into gas. This means that one person can fill up their car anywhere and...
The Best Used Cars to Buy If You're a Teacher
If If you are a teacher, probably foremost on your mind is getting to school on time. You would also probably like a used car that is easy on gas and not terribly expensive, and will hold your gym gear...
Symptoms of a Bad or Failing Brake Booster Vacuum Sensor
A failing brake booster vacuum sensor will cause the brake pedal to be stiff or turn on the Check Engine Light.