1sick4g63

iTrader: (1)

So I just got my integra 95 auto like a month or so ago and the gas mileage sucks bad.
Intake, dc sports header, apex ws exhaust and some gas saver crap. Car runs great, minus a little exhaust leak.
I drive it like a bitch, I coast in neutral as much as possible to stop. On my 17mile trip to work, I have coasted as much as 7 miles in neutral.
Got the car, and it got 22mpg. Did a tune up, got 23mpg, and now after coasting and still driving like grandma I get 24mpg.
Talked to my friend with his modded gsr and he beats the snot out of it and he gets 27mpg. Just threw on some new light weight rims and new tires, new front brakes and still gets garbage gas mileage.
After this tank the gas saver thingy is coming out, but seriously if everyone else averages 30mpg driving normal or beating on it and I drive like a bitch why is mine so crappy?

Micha

Have you reset your ecu yet?

PatrickGSR94

iTrader: (1)

Tune-up and ECU... also put in a new O2 sensor. However that probably won't get you to 30 mpg. It netted me a 3-4 mpg increase on average, though. But I was already getting 32+ on the highway and I got up over 37 mpg on the highway shortly after installing the new O2.

Defiant_dc

replace fuel filter maybe ??

1sick4g63

iTrader: (1)

I have a new fuel filter awaiting install here. o2 sensor in the works as soon as I can gather up the funds. And what will resetting my ecu do?
Also is there a specific way to or should I just unplug it for an few minutes?

hatchling37

Disconnect your negative battery terminal. Put that new filter in that bish. I'm assuming when you say tune-up you did the whole plugs, wires, valve adjustment thing... Any CEL's? That'll put your gas mileage to **** in a hurry

1sick4g63

iTrader: (1)

I did plugs, cap and rotor. No wires yet and what valve adjustment? No cel's.
What's so hard about the new fuel filter? Also is there a shradder valve on this car to release the fuel pressure or just disconnect it?
How long do you leave the battery disconnected?

xprohx

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 1sick4g63 &raquo;</TD></TR><TR><TD CLASS="quote">How long do you leave the battery disconnected?</TD></TR></TABLE>

Disconnect negative battery for about 5 minutes or longer.
Reconnect the battery and start the car up without touching the throttle or adjusting anything.
Let it idle for 10 - 15 minutes.
Turn off car.

Putting in a new 02 sensor also netted me an extra 2-4 mpg in the city.

hmongyaj87

this car is a 95 which means obd1. no need to reset ecu.

TOO MUCH TORQUE

first of all dont put it in neutral, that wastes gas.....let it cruise in gear

1sick4g63

iTrader: (1)

Ok. But even still it was at 23mpg which is far from what it should be.

Sweetsystem

Ive noticed a big drop when they started adding ethenol to our gas. I was getting 30 but now im getting close to 25 in my 94 GSR

Thrule01

might want to run some chevron techron injector cleaner...also what kind of gas are you running in it? oct and from what location?

i usually drive 300-350 on a tank before i fill up (9-10 gallons usually) and my light doesn't even come on yet..and that's with me gassing her a good bit...and i need to change my air filter/oil/plugs etc...

but i have noticed if you gas up at cheap places you get cheap gas mileage...i just use chevron, exxon, texaco (sp), and sometime shell...and i notice my car runs better and i get better mileage

1sick4g63

iTrader: (1)

I use 87 octane from bp,mobile,shell. I did run some injector cleaner in there, bu tit wasn't techron.
My light usually comes on at 260miles.

PatrickGSR94

iTrader: (1)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by xprohx &raquo;</TD></TR><TR><TD CLASS="quote">

Disconnect negative battery for about 5 minutes or longer.
Reconnect the battery and start the car up without touching the throttle or adjusting anything.
Let it idle for 10 - 15 minutes.
Turn off car.

</TD></TR></TABLE>

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by hmongyaj87 &raquo;</TD></TR><TR><TD CLASS="quote">this car is a 95 which means obd1. no need to reset ecu.</TD></TR></TABLE>

Incorrect on both accounts. Helm's manual for OBD1 Integras lists the ECU reset procedure, which involves pulling the EFI fuse for something like 30 seconds, and that's it. No need to let it idle, stop, disconnect battery, restart and let idle or all that mess.

You should reset your ECU after replacing any sensor or other electronic part on the engine, like the O2 sensor. I have never reset the ECU for anything like fuel filters or valve adjustments. That's just not necessary.

Spec R

everyone has that friend that claims they get 50mpg and put down 40,000whp

have u put into the equation the weights of your cars with drivers and whatever else thats in the car?

if you're getting around 23mpg i wouldnt complain. that sounds about normal for an automatic integra.

tegra2G

i get actually 35 mpg in my DA
skunk2 mega power exhaust
intake
intake manifold
7lb flywheel stage1 clutch
5zigen header
polyurethane motor mounts

ruffrhyder

iTrader: (1)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 1sick4g63 &raquo;</TD></TR><TR><TD CLASS="quote">So I just got my integra 95 auto like a month or so ago and the gas mileage sucks bad.
Intake, dc sports header, apex ws exhaust and some gas saver crap. Car runs great, minus a little exhaust leak.</TD></TR></TABLE>

Where is the exhaust leak? If it is before the O2 sensor, that can be a major factor in your poor gas mileage.

Spec R

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by tegra2G &raquo;</TD></TR><TR><TD CLASS="quote">i get actually 35 mpg in my DA
skunk2 mega power exhaust
intake
intake manifold
7lb flywheel stage1 clutch
5zigen header
polyurethane motor mounts</TD></TR></TABLE>

way to help the guy with his problem - he already knows his mileage is down, yet you post your 35mpg figure.

lemme guess, you dont have ac or ps either. and you live in an area with no hills?

SkaiWu

massive noob question would you need to reset your ecu if you put a new/different air filter inplace of a old broken one?

TunerN00b

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by SkaiWu &raquo;</TD></TR><TR><TD CLASS="quote">massive noob question would you need to reset your ecu if you put a new/different air filter inplace of a old broken one?</TD></TR></TABLE>

Generally, no.

If it really doesn't run right after you do replace it, consider trying it anyway.

Sweetsystem

Now that you mention it. I have a minor exhaust leak between my exhaust manifold and block. 1 stud broke off on the far left of the manifold and I get exhaust carbon build up on my block in the engine code area. I bet that is why my gas mileage sucks. O2 sensor isnt getting all the data my ECU needs. I'm going to fix that problem now.

Thanks for asking the right question!

Spec R

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Sweetsystem &raquo;</TD></TR><TR><TD CLASS="quote">Now that you mention it. I have a minor exhaust leak between my exhaust manifold and block. 1 stud broke off on the far left of the manifold and I get exhaust carbon build up on my block in the engine code area. I bet that is why my gas mileage sucks. O2 sensor isnt getting all the data my ECU needs. I'm going to fix that problem now.

Thanks for asking the right question! </TD></TR></TABLE>

awesome, it should help a lot.

some cars straight up stop running with minor exhaust leaks before the 02 sensors

1sick4g63

iTrader: (1)

The exhaust leak is at the donut. I went to the parts store but they didn't have one.

PatrickGSR94

iTrader: (1)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Sweetsystem &raquo;</TD></TR><TR><TD CLASS="quote">Now that you mention it. I have a minor exhaust leak between my exhaust manifold and block. 1 stud broke off on the far left of the manifold and I get exhaust carbon build up on my block in the engine code area. I bet that is why my gas mileage sucks. O2 sensor isnt getting all the data my ECU needs. I'm going to fix that problem now.

Thanks for asking the right question! </TD></TR></TABLE>

nahh, I had the same stud broken for over 5 years and some of my highest MPG figures happened while it was still broken. I finally got to replace the stud back on Memorial Day weekend when I had my engine pulled out for the first time. I never had room to drill it out before.

So yeah, that stud being broken doesn't make that much of a difference on MPG. I didn't really see any change after replacing it.