Results 1 to 9 of 9

Ugh filled up 3 times in 8 days. help

This is a discussion on Ugh filled up 3 times in 8 days. help within the General Help forums, part of the LSx Technical Help Section category; Man gas is killing me now. I have had to completly fill up my 98 ta 3 times in the ...

  1. #1
    Junior Member
    Join Date
    Sep 2005
    Location
    houston
    Age
    29
    Posts
    85

    Ugh filled up 3 times in 8 days. help

    Man gas is killing me now. I have had to completly fill up my 98 ta 3 times in the past 8 days. im getting about 215 or so miles per tank. around 16.5 mpg. I do get on it alot. I have a check engine light on right now. i think it read something about a o2 sensor before the cattilac converter. do yal think it might be running rich and thats why my mpg is bad? think something is wrong or just bad driving habits?

  2. #2
    Mustangs in the mirrors 02Hawk's Avatar
    Join Date
    Apr 2007
    Location
    New Jersey
    Age
    30
    Posts
    276

    Black
    2002 Firehawk Trans Am

    helll ya and always make sure your tire pressure is correct and air filter is clean. Get the O2 sensor fixed messes with your fuel curve.

  3. #3
    Senior Member SeVeReDiStOrTiOn's Avatar
    Join Date
    Aug 2005
    Location
    Roseville, CA
    Posts
    8,164

    05 Wrangler
    00 Z28 sold :-(

    Quote Originally Posted by wonderboy View Post
    Man gas is killing me now. I have had to completly fill up my 98 ta 3 times in the past 8 days. im getting about 215 or so miles per tank. around 16.5 mpg. I do get on it alot. I have a check engine light on right now. i think it read something about a o2 sensor before the cattilac converter. do yal think it might be running rich and thats why my mpg is bad? think something is wrong or just bad driving habits?
    Main problem is in bold...only a problem when trying to get good mpg.

    The code is probably a post-cat code...rent/buy a scanner and post up the code. LS1's run pretty rich from the factory so getting a tune will also help...my predator handheld helped a lot.

  4. #4
    Trans Am for life baby SexyTransAm's Avatar
    Join Date
    Feb 2007
    Location
    E-town, Kentucky
    Age
    30
    Posts
    344

    95-black & 80-blue
    95 Trans Am and 80 TA

    get a new o2 and then seafome the car

  5. #5
    Junior Member
    Join Date
    Apr 2007
    Location
    EASTERN, NC
    Age
    32
    Posts
    4

    WHITE
    99 WS-6

    Coreect me if I am wrong but wont the PCM run in OPEN LOOP and on a specific set of parameteers if the o2 sensor is broke?

  6. #6
    Senior Member
    Join Date
    Jul 2005
    Location
    Jacksonville, FL
    Posts
    2,725
    A bad 02 sensor before the cat can definitely affect fuel mileage. Stop by some place like auto zone, they'll read and code(s) free.

  7. #7
    Junior Member
    Join Date
    Apr 2007
    Location
    Phoenix
    Posts
    9

    black
    1998 z28 ls1

    I haven't had o2 on my car in about 5 years. No cats... my CEL has been on that long, My gas mileage was crappy before going no cats, also never had a tune

  8. #8
    Member
    Join Date
    Apr 2007
    Location
    San Diego
    Posts
    177

    Red
    2002 T/A

    Quote Originally Posted by LS177 View Post
    I haven't had o2 on my car in about 5 years. No cats... my CEL has been on that long, My gas mileage was crappy before going no cats, also never had a tune
    4 anybody not just LS177. Front o2's are very important IMO for street car that isn't always at WOT. A good tune will give you max performance out of your setup, but front o2's are there as a final check for the pcm and to compensate for wear and tear on engine components both electrical and mechanical. Yes, an OBDII car such as this will stay in open loop without feedback from those o2's (it's the Cali Smog Tech in me talkin'). Not good for MPG. Just my .02

  9. #9
    Senior Member Danger731's Avatar
    Join Date
    Aug 2000
    Location
    Indy
    Posts
    6,712
    yeah fix that code, what year is the car ?

Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)

Similar Threads

  1. Replies: 1
    Last Post: 02-16-2007, 06:12 AM
  2. car starts some times then won`t ????HELP
    By ironkitten in forum General Help
    Replies: 6
    Last Post: 10-26-2006, 11:16 AM
  3. Best times bone stock?
    By Raven98Z28 in forum Drag Racing
    Replies: 9
    Last Post: 08-08-2006, 06:55 PM
  4. Track Times??
    By The Rookie in forum Almost Anything Goes
    Replies: 3
    Last Post: 05-25-2006, 05:19 AM
  5. *** Happy New Year TRAIN!! ***
    By Ed Blown Vert in forum AAG Archives
    Replies: 15361
    Last Post: 12-31-2005, 11:10 PM

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •