Thread: 99 GP GT PO440 problem

Results 1 to 3 of 3

Hybrid View

Previous Post Previous Post   Next Post Next Post
  1. #1 99 GP GT PO440 problem 
    99grandgt
    99grandgt is offline
    SE Level Member
    Join Date
    Jul 2012
    Location
    Ohio
    Posts
    2
    Thanks (Received)
    0
    Likes (Received)
    0
    Dislikes (Received)
    0
    Thumbs up 07-22-2012
    I have a 99 GP GT that is throwing a PO440 code. I have a week before I take a trip from Ohio to Virginia. I ordered a new gas cap from rockauto.com. My only real question is, if I leave and the light comes back on during my trip will this code hurt the car or just my mpg?

    Hopefully the gas cap can fix the problem!!!
    Reply With Quote  
     
  2. #2 Re: 99 GP GT PO440 problem 
    dsmuts
    dsmuts is offline
    Moderator dsmuts's Avatar
    Join Date
    Feb 2011
    Location
    Coldwater, OH
    Posts
    15,758
    Thanks (Received)
    1
    Likes (Received)
    1
    Dislikes (Received)
    0
    Default 07-22-2012
    It won't hurt anything it's just emissions stuff i believe. Where are you in ohio?
    98 GTP modded 1.9's, sd headers, 3.4", zzp 1.0 230K miles scrapped.
    04 Comp G zzp stb's, UMI ta's, Speedbuilt sways, bully flo heads, XP, zzp headers, fsic, thrasher shift kit, 60#, 2.6" corsa 2.5", Inferno hood
    01 gt z7 turbo tep trans zzp motor
    08 g8 gt cam exhaust 11.87@118
    Reply With Quote  
     
  3. #3 Re: 99 GP GT PO440 problem 
    Fivefingerdeathpunch
    Fivefingerdeathpunch is offline
    Turbo is the way to go. Fivefingerdeathpunch's Avatar
    Join Date
    Sep 2009
    Location
    Rogers, MN
    Posts
    21,022
    Thanks (Received)
    21
    Likes (Received)
    45
    Dislikes (Received)
    0
    Default 07-22-2012
    I would check over all your evap lines, maybe one is cracked.

    And replacing the gas cap like you are doing could be the cause aswell.

    SMGPFC Member #1
    Reply With Quote  
     
« Previous Thread | Next Thread »

Similar Threads

  1. Is it a problem on my end? Picture Uploading Problem.
    By TJeno in forum Forum Bugs/Suggestions
    Replies: 4
    Last Post: 10-23-2012, 07:53 AM
  2. po440
    By gp03gtp in forum General Tech Discussion
    Replies: 3
    Last Post: 09-21-2010, 10:30 AM
  3. po440
    By gp03gtp in forum 3.8L V6 Supercharged (L67)(L32)
    Replies: 0
    Last Post: 09-20-2010, 01:04 PM
  4. MAF problem or is it something else?
    By apdale in forum 3.8L V6 Naturally Aspirated (L36)(L26)
    Replies: 3
    Last Post: 08-31-2009, 06:00 PM
  5. First Problem Need Help
    By zofsharick@gmail.com in forum General Tech Discussion
    Replies: 6
    Last Post: 10-19-2008, 03:30 PM
Tags for this Thread

View Tag Cloud

Bookmarks
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
  •  

Forum Rules