[yot065]

Been noticing my corolla has been using a lot of gas recently... the fact it being a corolla shouldnt run as high as it should..

Last last fill up
filled up 26L @ a distance travel led of 180KM

Todays fill up
20L at a distance traveled of 157KM

Slight change but still more then what i believe it should be using.... friend believes it the o2 sensor failing, anyone else support this? or have other thoughts?

Thanks

[hk20000]

you forgot to turn off the car at night one day?:suspicious:

[optiblue]

That's reaching my Evo X territory!
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[skylinergtr]

maybe a wacky fuel gauge?

check for fuel leaks also...

maybe its time for a tune up.
-check/replace spark plugs, igintion wires, distributor cap, distributor coil, fuel filter, air filter, o2 sensor, etc..

do you have a check engine light on? check your wheels for seized brakes.

Best of luck.

[yot065]

fuel filter is apparently insidet he gas tank.. cant do it myself lol

no engine light either

[IMASA]

Do you drive mostly short trips (<10km?)

I had a similar issue where I was getting unreasonable low fuel economy in my civic, turns out the odometer would intermitantly stop working.

[Paradise240]

I'd start with the basic stuff first, the ones you can do at home, like the air filter and spark plugs. Plus, they're not too expensive so it'll be a good place to start.

Whens the last time the car had any of things SkylinerGTR listed done ?

[yot065]

Do you drive mostly short trips (<10km?)

I had a similar issue where I was getting unreasonable low fuel economy in my civic, turns out the odometer would intermitantly stop working.

somewhat yeah, lol we live in vancouver :troll: no where is "far" lol

[yot065]

I'd start with the basic stuff first, the ones you can do at home, like the air filter and spark plugs. Plus, they're not too expensive so it'll be a good place to start.

Whens the last time the car had any of things SkylinerGTR listed done ?

Sparkplugs were done about 10k km ago, its probably about time now, distributor cap, coils, ignition aren't removable last time i remember. fuel filter is located inside gas tank lol, brake seize idk lol o2 sensor idk no lights

[IMASA]

somewhat yeah, lol we live in vancouver :troll: no where is "far" lol

well, all shorts trips = engine cold = ecu in open loop = use more fuel.
I once lived like a 5min drive to work and school. In the winter, the car's engine would never warm up by the time I got to my destination and I was getting really shitty mileage.

[Paradise240]

Sparkplugs were done about 10k km ago, its probably about time now, distributor cap, coils, ignition aren't removable last time i remember. fuel filter is located inside gas tank lol, brake seize idk lol o2 sensor idk no lights

Change the 02 sensor, as it's never been done. While your at it, might as well check spark plugs and inspect the filter.

[bluejays]

Check the tire pressure too
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[Lomac]

well, all shorts trips = engine cold = ecu in open loop = use more fuel.
I once lived like a 5min drive to work and school. In the winter, the car's engine would never warm up by the time I got to my destination and I was getting really shitty mileage.

What he said.

Also, expect fuel mileage during the winter months to drop. Colder temperature means it takes longer for an engine to exit open loop. Combine that with short trips and you've got a perfect combination for shitty MPG.

[Qmx323]

when was the last time ur thermostat was replaced? like they said above about cold engine = shite mileage, a faulty thermostat may be a part of the problem.

[Acura604]

can someone chime in on 'winter fuel' as a possible culprit?

[yot065]

tire pressure is at 35psi per. checking air today. sparks were done not too long ago.. o2 is a a possible change. thermo idk..

[EvoFire]

can someone chime in on 'winter fuel' as a possible culprit?

You do get lower mileage with winter fuel, around 30km less per tank for me, but not as bad as that, that's on par with a midsize SUV in a Corolla.

[Death2Theft]

How about your coolant temp sensor. Does the car read temperatures correctly.

[yot065]

checked filter today, filter still pretty clean, brakes arent seized, obd2 bluetooth thing normally says im running around 82 Celsius if i remember right

[EmperorIS]

maybe someone is syphoning your gas at night

[yot065]

maybe someone is syphoning your gas at night

lol my friend said that too, but i dont think so... too small of amounts to be worth caught doing...

[tee-tea]

try seaforming your car, to clean up your valves or add gas additives

[subordinate]

Somethings up with that corolla for sure.

I take short trips as well, V6 engine with a slippin transmission from 1-2 gear and I get slightly the same as you.

[yot065]

so.. been a while since ive posted.. anyone else got any ideas why a corolla is using a lot of gas.. replaced the o2 sensor.. air filter. changed plugs. tire pressures are up to 35. oil changed, tranny oil & filter changed, (cant do fuel filter cause in gas tank :'() seafoamed the car with no luck (funny to cops were maybe 50 meters away wondering why is there smoke and revving coming from a parking lot lolol) distributor wires cant be changed susp:

[godwin]

Bring it to a shop? preferably one of the sponsors? Have you got the car scanned? what is your aircare results etc?

[BrRsn]

place a brick under the gas pedal so you can only press it 1/4 of the way lol.

If your cars got a tach watch it when you drive. $20 for 150kms of driving? That's about as bad as my truck is lol .. at least now I don't feel so bad .. when people ask "is that thing a gas guzzler?" i can say "no, same MPG as a corolla yo :fuckyea: "

[narfy]

is the temp guage going to the middle and staying there when warmed up?

how long are your normal drives? how much time and how many KM??

ps.. 35psi is too high, and you'll notice uneven tire wear... spec is 29 and i would set that to 32psi cold...

[yot065]

place a brick under the gas pedal so you can only press it 1/4 of the way lol.

If your cars got a tach watch it when you drive. $20 for 150kms of driving? That's about as bad as my truck is lol .. at least now I don't feel so bad .. when people ask "is that thing a gas guzzler?" i can say "no, same MPG as a corolla yo :fuckyea: "

yeah.. one of the defective corollas that made it off the line susp: although it has its perks :fullof speakers are actually far better then the average car.. some believe i have a sub when i don't (stock speakers too :fullofwin:) and it sounds like it has turbo :fullofwin:

[yot065]

is the temp guage going to the middle and staying there when warmed up?

how long are your normal drives? how much time and how many KM??

ps.. 35psi is too high, and you'll notice uneven tire wear... spec is 29 and i would set that to 32psi cold...

yeah needles always at the middle, doesn't take long to warm up either

most rides arent very long but still (generally 5km 10mins?), the amount of fuel being used is still a little too much isnt it for even this little?

lol really, when its at 30 the front tires look like they are flat lol like the sidewall is bulged out lulzzz (got these all seasons in 2010 too)

[narfy]

yeah... those tires just look like that.. that's why my shop puts 32psi in them... evens out the tire wear...

clean your mass air flow sensor... altho a scanner would give you live readings as to what your MAF is reading...

*after looking the spec up, tire pressure is 30psi for 98-02 corolla...

[Sky_High]

20L @ 157km...

A Corolla is what? Around 50L tank? That's around 400km for a full tank.

Judging by the fact you only drive 5km and less than 10 minutes each time...in the city.
I wouldn't say it's that horribly off.


If you can, take it on a road trip down to the States....day trip to Langley or something.
All highway miles, and report back what kind of mileages you're getting.


http://www.revscene.net/forums/562793-how-many-kms-do-you-get-per-tank-your-lexus-toyota-how-big-ur-tank-5.html


2001 corolla

50L tank; est. 440 to 460km range
mostly city driving and odd day up sfu + highway

380km until light comes on.

50L tank Matrix.

My fuel milage sucks. City driving to work weekdays with heat on.

Summer is slightly better with 420km to light as I don't need to turn on A/C unless really warm.
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[yot065]

20L @ 157km...

A Corolla is what? Around 50L tank? That's around 400km for a full tank.

Judging by the fact you only drive 5km and less than 10 minutes each time...in the city.
I wouldn't say it's that horribly off.


If you can, take it on a road trip down to the States....day trip to Langley or something.
All highway miles, and report back what kind of mileages you're getting.


http://www.revscene.net/forums/562793-how-many-kms-do-you-get-per-tank-your-lexus-toyota-how-big-ur-tank-5.html

have nothing to do in langley or the states :alone:

[InvisibleSoul]

Here's a general question that's somewhat related.

When your engine starts to lose compression and the power is noticeably weaker, does it also use more gas at that point?

[subordinate]

Yes, = inefficient.

A leaky Headgasket = lower compression = less power = less efficient = should use more gas.

[1990TSI]

have nothing to do in langley or the states :alone:

except prove your fuel efficiency problem.....

if you're doing short trips and getting poor mileage, that may be the problem.
fill your tank, drive to hope, say hi to the gas station lady and drive home to your local gas station. fill up and do an accurate L/100 measurement.

I averaged 4.9L/100 from playland to hope last summer keeping the speed limit or slightly over, you should be close. if you get 10L/100 on your test run you obviously have a problem and need a good shop to scan AND more importantly scope your ecu/engine to see what kind of problems you're having.

before throwing parts at it, do a good highway test to see if you 'really' have poor fuel mileage or if it's just your short trips. if you do have a problem, let a shop know about it, explain you've done all the tune up items and get them to scope everything. if they don't have a scope, go somewhere else.

all these replys saying to replace O2 sensor and clean maf im sure mean the best, but realistically without a scope, you won't find the actual problem and will waste time and money (as apperently you have) trying to find a problem hiding somewhere.