Our website family:  ClubCivic.com - ClubIntegra.com - TunerSports.com

SEARCH: Forums | Parts
Attention Honda Civic Visitor:  Remove this block by logging in above or registering.

Welcome to ClubCivic.com, a forum dedicated to the Honda Civic, including all generations. In order to post on this forum you will have to register.

Registration is free and will intitle you to other site features including access to post your Honda Civic in the member's garage, join in raffles for performance parts, etc.



Go Back   ClubCivic.com - Honda Civic Forum > Honda Civic Technical > Tech Archive (No Posting)

Notices

Tech Archive (No Posting) This will also temporarily hold all of the old gen specific threads until they are all moved to the correct categories.

Please SEARCH Before Posting a New Thread. ->
Ready to Post a New Thread/Question? ->



Bad Gas Mileage...

Tech Archive (No Posting)


Technical forums are exclusively for technical discussions.
Thread Makers: Thread titles must summarize the technical question or problem, and the first post must include the year, trim, and any mods for your Civic.
Responding Members:
Limit your posts to helpful responses, and do not tell members to "Go Search", unless you also provide some specific guidance on the technical question or problem.
All Members: Rude or flaming posts will not be tolerated, though civil debate and disagreement are acceptable.


 
Thread Tools
Old 08-12-2008, 02:46 PM   #1
postal21
vroom vroom
 
postal21's Avatar
 
Join Date: Nov 2003
Location: DYT ohio.
Age: 31
Posts: 800
 
Thanks: 0
Thanked 0 Times in 0 Posts

Default Bad Gas Mileage...

Okay, so my car has been getting bad gas mileage for awhile... I used to get around 30mpg, nowadays Im lucky to get in the low 20s...

Ive had a tune-up and timing belt changed recently and the problem still persists.

How much can my car being out of alignment and my front left strut being slightly broken ( missing a washer or something causing it to cause wheel hop etc.) effect my cars mileage?

My only other idea is that the o2 sensor has gone bad and is causing a bad fuel mix or something. Because I do have a catback exhaust... *shrug*

Help me. :)

btw, car has around 116,000 miles, everything but it being lowered and exhaust is stock.
__________________
"right handed men dont hold it with their left"
postal21 is offline  
Old 08-12-2008, 03:16 PM   #2
Jersey8
B20: Detroit Muscle!
 
Jersey8's Avatar
 
Join Date: Mar 2006
Location: MI
Age: 27
Posts: 4,670
 

Thanks: 0
Thanked 0 Times in 0 Posts

Default

your o2 sensor can drastically effect your gas mileage. your alignment can cause it to drop slightly, depending how bad it is. change your o2 sensor, and your gas mileage will get better

is it your primary o2 or secondary o2?
__________________
Jersey8 is offline  
Old 08-12-2008, 04:16 PM   #3
Billy.
♪♪ ♫♪ ♪♫♪ ♪♪ ♫♫ ♪
 
Billy.'s Avatar
 
Join Date: Oct 2003
Location: Chucktown, SC
Age: 29
Posts: 11,443
 


Thanks: 0
Thanked 0 Times in 0 Posts

Default

o2 sensor x2
__________________
iTrader Profile
Billy. is offline  
Old 08-12-2008, 04:34 PM   #4
96swpdEK
Registered User
 
96swpdEK's Avatar
 
Join Date: Sep 2007
Location: Nor Cal
Posts: 2,980
 
Thanks: 0
Thanked 0 Times in 0 Posts

Default

o2 sensor = $$$

sucks.
96swpdEK is offline  
Old 08-12-2008, 04:45 PM   #5
Inertial
Registered User
 
Inertial's Avatar
 
Join Date: Feb 2008
Location: Buffalo, NY
Age: 27
Posts: 333
 
Thanks: 0
Thanked 0 Times in 0 Posts

Default

my secondary/downstream o2 sensor has been changed 3 times this year =[

it fixed the issue you are having for maybe 2weeks-1month before the o2 sensor went again. Idk im probably gonna go to honda to get their o2 sensor in my 150k checkup
__________________
94 Civic EX - SOLD
00 Civic EX - Stolen
00 Civic Si - SOLD
08 Civic EX
Inertial is offline  
Old 08-12-2008, 04:51 PM   #6
ScratchNSniff
Registered User
 
ScratchNSniff's Avatar
 
Join Date: Sep 2007
Location: Greenville, SC
Age: 25
Posts: 3,452
 
Thanks: 0
Thanked 0 Times in 0 Posts

Default

Get fuel injectors cleaned...not sure if that was part of your tune up or not...I was experiencing horrible mileage (around 18-19MPG) and tried everything until one day I thought maybe it was dirty injectors...well it was...now I am back to getting around 34 MPG...yes, a 16MPG difference...
__________________
ScratchNSniff is offline  
Old 08-16-2008, 10:49 PM   #7
MidniteMike
Registered User
 
Join Date: Aug 2008
Location: Arkansas
Posts: 15
 
Thanks: 0
Thanked 0 Times in 0 Posts

Default

I just went through this same thing with my car it seems, changed the primary O2 sensor and spotted a crack in the exhaust manifold, and since i'm cheap I just patched the crack for now, did this about a week ago and now am getting my 35mpg again compared to the 21 i was getting...
MidniteMike is offline  
Old 08-17-2008, 12:57 AM   #8
RedValve
~Team Penguin
 
RedValve's Avatar
 
Join Date: Mar 2008
Location: Houston, TX
Posts: 210
 
Thanks: 0
Thanked 0 Times in 0 Posts

Default

mostly likely its the o2 sensor, but if you want to make sure check the fuel filter too id thats old might as well replace that also.
__________________
`Team Penquin
RedValve is offline  

 


Bookmarks


Similar Threads
Thread Thread Starter Forum Replies Last Post
Bad Gas Mileage From IM? fiend2003 Tech Archive (No Posting) 3 02-20-2010 06:00 PM
bad gas mileage... why? guwakjai010 Engine Tech / Drivetrain 7 01-29-2008 12:52 PM
Bad Gas Mileage 4gcivic69 Tech Archive (No Posting) 10 10-24-2007 03:22 PM
bad gas mileage on vx that_sick_eg Tech Archive (No Posting) 11 07-08-2007 08:33 PM
still bad gas mileage k624ash Engine Tech / Drivetrain 20 05-17-2006 02:53 PM

Thread Tools

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -4. The time now is 03:31 PM.


Powered by vBulletin® Version 3.8.5
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
vB.Sponsors

Store News:

Latest Topics:


Store Specials:

ALL
Unanswered Topics:





Copyright 2011 ClubCivic.com - ClubCivic.com is in no way affiliated with Honda Motor Company