Badkarma

#31

i really haven't been beating on the car. it's been mostly highway because i've taken a few trips to the houston oreily's racetrack.(haven't run it) and i set cruise for 70.
its a 1996 hatchback automatic. maintainance has been kept up. fuel filter, oil filter, oil, air filter, pcv valve, spark plugs, and wires. only thing you all seem to be listing off that i haven't change is the o2 sensor(s).

im going to try to keep it under 3k rpms, and fastest at 60mph on the highway. im just going to drive it very easy until the next fill up. i really was hoping for 25-30.
ill let you guys know how i do when i fill up next week.

So far: MpT:290..ish MpG:19.5


Thanks. Erich.

markjbutler

#32

>

QUOTE(Badkarma @ Mar 27, 2008 - 10:40 PM) [snapback]658976[/snapback]

>
i really haven't been beating on the car. it's been mostly highway because i've taken a few trips to the houston oreily's racetrack.(haven't run it) and i set cruise for 70.
its a 1996 hatchback automatic. maintainance has been kept up. fuel filter, oil filter, oil, air filter, pcv valve, spark plugs, and wires. only thing you all seem to be listing off that i haven't change is the o2 sensor(s).

im going to try to keep it under 3k rpms, and fastest at 60mph on the highway. im just going to drive it very easy until the next fill up. i really was hoping for 25-30.
ill let you guys know how i do when i fill up next week.

So far: MpT:290..ish MpG:19.5


Thanks. Erich.

i have to agree with everyone else here - something must be up... i have a 3sge celica (2.0L, 173hp) and with the conversion to US mpg i get 25 and most of the time i'm going about 2 miles up and down the road to my place of work

azian_advanced

#33

i'm in the same situation.. i'm averaging 19-20 mpg. i'm waiting for a huge shipment from toyota for OEM and TRD parts to begin my tune up. i'm hoping for my mpgs to bounce up.. even if it's just a little.

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axelrduvirage

#34

>

QUOTE(azian_advanced @ Mar 28, 2008 - 8:19 AM) [snapback]659045[/snapback]

> i'm in the same situation.. i'm averaging 19-20 mpg. i'm waiting for a huge shipment from toyota for OEM and TRD parts to begin my tune up. i'm hoping for my mpgs to bounce up.. even if it's just a little.

PLEASE start a new thread on this !!!!! as for em i get 26 -29 US MPG. replaced plugs, wires and distributor. dropped in a K&M hi-flo filter that i clean every month. changed to synthetic oil. check tyre pressure and oil level every fill-up.

azian_advanced

#35

sure, i was actually planning to do that. and show you guys what kinda results i get.

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D-Man

#36

>

QUOTE(Badkarma @ Mar 27, 2008 - 11:40 PM) [snapback]658976[/snapback]

>
i really haven't been beating on the car. it's been mostly highway because i've taken a few trips to the houston oreily's racetrack.(haven't run it) and i set cruise for 70.
its a 1996 hatchback automatic. maintainance has been kept up. fuel filter, oil filter, oil, air filter, pcv valve, spark plugs, and wires. only thing you all seem to be listing off that i haven't change is the o2 sensor(s).

im going to try to keep it under 3k rpms, and fastest at 60mph on the highway. im just going to drive it very easy until the next fill up. i really was hoping for 25-30.
ill let you guys know how i do when i fill up next week.

So far: MpT:290..ish MpG:19.5


Thanks. Erich.

okay, ya know what, with that auto, there is a little button on your shifter,right on the left side, it's called OVERDRIVE!!

Make sure it's pushed in, not pushed out.

BAM!! abra-kadabra you'll retain alot more fuel.

high-MPH, low-Gear.... I wonder why? ..................

This post has been edited by D-Man: Mar 28, 2008 - 9:11 AM

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QUOTE (presure2 @ Nov 6, 2010 - 6:16 AM)Via FB: fcuking awsome!!! D-man FTW!QUOTE (DEATH @ Nov 11, 2008 - 5:40 PM)Damn D-Man - most impressive.QUOTE (99GT @ Nov 14, 2008 - 4:04 PM)D-Man's post should be a stickyQUOTE (samir0189 @ Nov 4, 2008 - 10:50 AM)LOL, oh boy, you can always count on D-Man for ridiculously hilarious posts.

hurley97

#37

>

QUOTE(Badkarma @ Mar 27, 2008 - 11:40 PM) [snapback]658976[/snapback]

>
i really haven't been beating on the car. it's been mostly highway because i've taken a few trips to the houston oreily's racetrack.(haven't run it) and i set cruise for 70.
its a 1996 hatchback automatic. maintainance has been kept up. fuel filter, oil filter, oil, air filter, pcv valve, spark plugs, and wires. only thing you all seem to be listing off that i haven't change is the o2 sensor(s).

im going to try to keep it under 3k rpms, and fastest at 60mph on the highway. im just going to drive it very easy until the next fill up. i really was hoping for 25-30.
ill let you guys know how i do when i fill up next week.

So far: MpT:290..ish MpG:19.5


Thanks. Erich.

your problem is the automatic transmission.

my 97 ST as an auto would get exactly the same miles per tank, usually about 280 and would never make it to 300.
after the tranny swap I drove it nice and easy and got just about 450 to that first full tank of gas, I was amazed for weeks. then I got comfortable with it and started beating on it and now I'm averaging about 350 to a tank.

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7A-FTE:It's not about the money.Our Beams Swap.I <3 Dustin---07/16/06

Rymaster

#38

jeez i break 30mpg easily
of course, i coast ATON!

i'm always in neutral down hills and such, seems to save me a lot of $$ in the long run

99CelicaGT

#39

Me and my buddy took a trip to California last week. When I was driving at night, the car was getting about 370 miles on half a tank of gas. I just kept the RPM a little above 2k by driving about 60mph. At 60mph with some cool weather, I can get nearly 700 miles to the tank. I never accelerate hard. The car has had a very easy life.

alltracman78

#40

>

QUOTE(hurley97 @ Mar 28, 2008 - 10:52 AM) [snapback]659109[/snapback]

>
>

QUOTE(Badkarma @ Mar 27, 2008 - 11:40 PM) [snapback]658976[/snapback]

>
i really haven't been beating on the car. it's been mostly highway because i've taken a few trips to the houston oreily's racetrack.(haven't run it) and i set cruise for 70.
its a 1996 hatchback automatic. maintainance has been kept up. fuel filter, oil filter, oil, air filter, pcv valve, spark plugs, and wires. only thing you all seem to be listing off that i haven't change is the o2 sensor(s).

im going to try to keep it under 3k rpms, and fastest at 60mph on the highway. im just going to drive it very easy until the next fill up. i really was hoping for 25-30.
ill let you guys know how i do when i fill up next week.

So far: MpT:290..ish MpG:19.5


Thanks. Erich.

your problem is the automatic transmission.

my 97 ST as an auto would get exactly the same miles per tank, usually about 280 and would never make it to 300.
after the tranny swap I drove it nice and easy and got just about 450 to that first full tank of gas, I was amazed for weeks. then I got comfortable with it and started beating on it and now I'm averaging about 350 to a tank.

9 Times out of 10 manual>auto for gas mileage.

6G96GT

#41

>

QUOTE(Badkarma @ Mar 26, 2008 - 9:39 PM) [snapback]658420[/snapback]

>
well, i bought the celica with hopes of getting Much better gas mileage than my other car. 1999 mustang 3.8 v6 5 spd. so i filled it up last week, set the trip, and today the trip meter hit 280 miles and i was due for a fill up. well, it took 14.4 gallons. it comes out to about 19.5 miles per gallon. my mustang gets 21 average! i've gotten up to 30!. this really was quite a let down. i still love the celica but is everyone getting such horrible mpg?
maintainance is kept up. runs great. plugs, wires, filters. only thing i can think of is it needs of an alignment. what else could be the problem?

thanks, sorry for knocking the celi's.


Erich

Don't be sorry for us, only yours sucks. Mine is awesome!

Badkarma

#42

everyone always tries coming up with a "operator's error" comment. Over drive is ON.

but thanks for the input. ill update when the tank gets low.
Thanks, Erich

99CelicaGT

#43

For all of you 5s-fe owners, I've done some comparisons with spark plugs. Bosch Platinum +2 plugs work great on the 5s-fe and give great gas mileage. Also, make sure you perform a coolant flush once a year. If the engine is running at optimal temperature, you will get better gas mileage. Cleaning out the throttle body twice a year also helps gas mileage by removing harmful contaminents within the TB.

azian_advanced

#44

there are sooo many things that will lead to poor fuel efficiency.. like a lot! but it all really comes down to how well your car is maintained and how you use it

This post has been edited by azian_advanced: Mar 29, 2008 - 12:13 AM

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DEATH

#45

>

QUOTE(99CelicaGT @ Mar 28, 2008 - 9:04 PM) [snapback]659351[/snapback]

>
For all of you 5s-fe owners, I've done some comparisons with spark plugs. Bosch Platinum +2 plugs work great on the 5s-fe and give great gas mileage.

You'd be close to alone on that opinion - I and many others have had bad experiences with bosh plugs on Toyota engines. NGK FTMFW

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ENGINE: '93 RC 3S-GTE/WRC CT-20b [18-20PSI]PERF: TRD/HKS/ARP/NGK/MSD/ACT/Blitz/STRI/APEX'i/TwosRus/GReddy/Magnaflo/KOYOSUSP: Tein/Bilstein/SusTech/INT: SS-III SEATS/Toyota Hyper SportsEXT: WRC/TRD/404QUOTE (lagos @ Aug 25, 2010 - 10:13 AM)Its a safety feature so that people like you don't end up killing themselves or everyone around them.Slow down Paul Walker.6GC Chat - Go there: [url="http://www.griffgirl.com/forum/chat/index.php[/url]

Silver94CelicaOwner

#46

Yeah, most Bosch plugs on Toyotas don't work too great, in my experience.

I pulled a totally beat set of Bosch Platinum +4's out of my Corolla that were obviously way too hot of a plug for the car.....and you would think the little 4AFE wouldn't be so picky. I also had a set of +4's on the 5SFE in the Celica long before I swapped the 3SGTE in, and it was the same deal with those. Plugs looked like they were running white hot upon inspection.

With our Toyotas, If you're going to use Bosch plugs make sure its a cooler plug with a core made from iridium or copper or the like.

I've used nothing but cooler NGK plugs ever since and to great success.




Back on topic.....Badkarma, I would definately replace your primary O2 sensor in the exhaust manifold. Check your ignition timing as well to make sure its in spec.

You really shouldn't be getting poor gas mileage like that....I get comparable if not better gas mileage with my swap utilizing a big fuel pump, 540cc injectors, and lots of boosting!

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3rd gen ST205 3SGTE - Alive and boosting.

99CelicaGT

#47

+4 plugs are meant for larger displacement engines such as 3.8-4.0 v6's. It allows all the fuel in each cylinder to completely burn. This is why +2 was the most efficient plug for my 5sfe. My gas mileage improved greatly after switching from NGK to the bosch plantium +2.

Now on other hand, I used to have a Nissan Sentra 2.0 that would run the bosch +2's too hot, and they would turn white with no effort. It would only run good with Autolite plugs. Sometimes, an individual engine can be very picky about what you give it.

Badkarma

#48

where on the exaust manifold is it located?
any diagrams? prolly do a search on that.

and i don't have a timing light. now i have ever checked my timing before. so ill prolly have to get that done somewhere.
Thanks for the help. its much appreciated.
girlfriend is driving the car for now.

Thanks, Erich.

99CelicaGT

#49

Your exhaust manifold is located where the metal cover in the center of the engine bay is. You will most likely see a hand with a cross through it that says do not touch. Most o2 sensors can be cleaned and polished back to good condition, BUT a bad o2 sensor will not really hurt your gas mileage that bad. If the o2 sensor is bad, your check engine light will come on. Also, your car will idle very rough. I suggest cleaning your MAF sensor, throttle body, and you might want to get a CAI kit that mounts to the inside of the drivers side fender. This will allow your engine to pull in a lot cooler air. Cool air = better performance = better gas mileage.

6strngs

#50

>

QUOTE(99CelicaGT @ Apr 1, 2008 - 5:47 PM) [snapback]660643[/snapback]

>
Your exhaust manifold is located where the metal cover in the center of the engine bay is. You will most likely see a hand with a cross through it that says do not touch. Most o2 sensors can be cleaned and polished back to good condition, BUT a bad o2 sensor will not really hurt your gas mileage that bad. If the o2 sensor is bad, your check engine light will come on. Also, your car will idle very rough. I suggest cleaning your MAF sensor, throttle body, and you might want to get a CAI kit that mounts to the inside of the drivers side fender. This will allow your engine to pull in a lot cooler air. Cool air = better performance = better gas mileage.

our cars don't use a MAF sensor. and while cleaning out the throttle body may be a good thing to do, it won't really affect gas milage noticably.

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94 GT - Sold -------- 69 Pontiac Lemans - Sold88 Alltrac - Sold ---- 04 WRX - Sold00 GT-S - Sold ------ 91 Miata - project/drift car95 GT - Sold -------- 96 GT - New Daily Drive

Badkarma

#51

I know where the exhaust manifold is. im not that inexperienced...lol
but what i was asking is.. where is the O2 sensor you suggest replacing located?
is it easy to get to? do i need to take anything off to reach it? how long...."should" it take.

Thanks , Erich

6strngs

#52

if you're looking at the exhaust manifold and look down into the engine bay you should see it poking out of the driver's side of it. I tried to take mine off with the manifold still in the car and couldn't. actually, once the manifold was out I still had a hell of a time getting it out! I actually bent a wrench because it was so tight... but if you've got the right tools or just a lot of muscle I'm sure you could get it out with the manifold still i the car. you might need to remove the heat sheilds though. you'll just need to unplug the electrical connector, unscrew the old sensor, screw in the new one and re-plug in the connecter... it sounds easier than it is though.

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94 GT - Sold -------- 69 Pontiac Lemans - Sold88 Alltrac - Sold ---- 04 WRX - Sold00 GT-S - Sold ------ 91 Miata - project/drift car95 GT - Sold -------- 96 GT - New Daily Drive

GriffGirl

#53

Have you replaced your distributor cap and rotor? If the contacts are burnt out, it will have a significant impact on your mileage too. Plus it's easier to get to than your o2 sensor. : )

b1gr3d

#54

my gt gets around 400 miles on a tank...almost all highway miles too

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Coming in 2010full paintjob - new wheels - modified body - new interior - engine build- marriage

Batman722

#55

replace the 02 yet ?

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my st205 swapandour Beams swap

daazndood

#56

i recently achieved 260 miles off of 11 gallons.

of the 260, about 150 were highway miles.

this puts me at about 23mpg mixed driving. i drive hard too =[

dnyluong

#57

>

QUOTE(monkey @ Mar 26, 2008 - 10:06 PM) [snapback]658431[/snapback]

>
its all about the style of driving....
drive to ur cars abilities, not urs.... lmao
it dissapoints me that the celicas mpg goes down soo much with speed......
worst point of the celica
even more than the cup holders....
my stepdads vette gets better gas milage than my car in just the sole reason it doesnt have to work as hard to get up to speed.......

LOL
the cup holders are pretty damn bad, this made me smile ahha

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Rider

#58

I usually shift anywhere between 2,800 - 3,400 rpm and that gets me about 26 miles per gallon in mixed driving (more highway than city though).

I got 27 mpg on the last tank by shifting on average around 2,700 - 2,800 rpm... No real loss in performance.

I recently changed the spark plug wires and O2 sensor and I use a fuel injector cleaner every now and then. Oh, and I have four springs and four shocks sitting in the trunk, that might make a difference, lol.

EDIT: 29 mpg almost all highway driving.

This post has been edited by Rider: Apr 15, 2008 - 12:42 AM