Thread: still trouble after top swap

Results 1 to 10 of 10

Hybrid View

Previous Post Previous Post   Next Post Next Post
  1. #1 still trouble after top swap 
    GT Level Member
    Join Date
    Jul 2014
    Location
    New Jersey
    Posts
    346
    Thanks (Received)
    0
    Likes (Received)
    0
    Dislikes (Received)
    0
    So a while ago i got the car starting and stopped there but i really need driving again.
    Sooo here it is, the car is hard to start and when it does it barely idles and wont idle if i take my foot off the pedal, runs a max of 30 seconds. The problems i know so far is that i have an upstream exhaust leak and possibly a bad o2 sensor. I'll be testing for vac leaks once i get a buddy to help me spray. Any ideas?
    Reply With Quote  
     

  2. #2 Re: still trouble after top swap 
    GTP Level Member 99GT2dr's Avatar
    Join Date
    Dec 2007
    Location
    Cibolo, TX
    Posts
    545
    Thanks (Received)
    0
    Likes (Received)
    0
    Dislikes (Received)
    0
    What injectors are you using, do you have the proper IFR table in the pcm for said injectors, and who did your pcm? Does unplugging the maf and/or 02 sensor help at all? Can you hear any vac leaks while it's running?
    '11 Suburban LTZ
    '99 SSEi
    '99 GT
    '09 G8 GT
    Reply With Quote  
     

  3. #3 Re: still trouble after top swap 
    GT Level Member
    Join Date
    Jul 2014
    Location
    New Jersey
    Posts
    346
    Thanks (Received)
    0
    Likes (Received)
    0
    Dislikes (Received)
    0
    Zzp did my tables but i just got my tuner so I'm gonna go over everything, unplugging them did nothing and i couldnt hear the leaks but I'm gonna get carb and check anyway
    Reply With Quote  
     

  4. #4 Re: still trouble after top swap 
    GTP Level Member 99GT2dr's Avatar
    Join Date
    Dec 2007
    Location
    Cibolo, TX
    Posts
    545
    Thanks (Received)
    0
    Likes (Received)
    0
    Dislikes (Received)
    0
    Can you try swapping your original pcm back in? If not, just write a stock file in for your car and go from there, that way you eliminate the tune being a possibility. Make sure you have the right IFR table for your injectors, and pull up your dtc's (they don't always set a cel) see if you got anything. Double check your plugs/wires, make sure they're all fully seated and going to the right cylinders (**** happens). Might check the ICM ground and make sure it's good as well.
    '11 Suburban LTZ
    '99 SSEi
    '99 GT
    '09 G8 GT
    Reply With Quote  
     

  5. #5 Re: still trouble after top swap 
    GT Level Member
    Join Date
    Jul 2014
    Location
    New Jersey
    Posts
    346
    Thanks (Received)
    0
    Likes (Received)
    0
    Dislikes (Received)
    0
    injector table are good, plugs are seated at the correct position, ground is okay, no fault codes when i scan, tried the original pcm with no luck, tried the l36 crank pulley and it runs the same

    needless to say I'm puzzled
    Reply With Quote  
     

  6. #6 Re: still trouble after top swap 
    GT Level Member
    Join Date
    Jul 2014
    Location
    New Jersey
    Posts
    346
    Thanks (Received)
    0
    Likes (Received)
    0
    Dislikes (Received)
    0
    My only idea is to check compression, only snag is i need to buy/rent something to do that
    Reply With Quote  
     

  7. #7 Re: still trouble after top swap 
    GTP Level Member 99GT2dr's Avatar
    Join Date
    Dec 2007
    Location
    Cibolo, TX
    Posts
    545
    Thanks (Received)
    0
    Likes (Received)
    0
    Dislikes (Received)
    0
    No luck with vac leaks? Did you scan your 02's to see if they're switching to rule out a bad 02 sensor?
    '11 Suburban LTZ
    '99 SSEi
    '99 GT
    '09 G8 GT
    Reply With Quote  
     

  8. #8 Re: still trouble after top swap 
    GT Level Member
    Join Date
    Jul 2014
    Location
    New Jersey
    Posts
    346
    Thanks (Received)
    0
    Likes (Received)
    0
    Dislikes (Received)
    0
    I found my problem and it was a very stupid mistake i accidentally knocked the crank key in and now i cant find it... Oh joy
    Reply With Quote  
     

  9. #9 Re: still trouble after top swap 
    GTX Level Member Elite6's Avatar
    Join Date
    Sep 2010
    Location
    Cambridge, Ontario Canada
    Posts
    798
    Thanks (Received)
    0
    Likes (Received)
    0
    Dislikes (Received)
    0
    Quote Originally Posted by xcwilli11 View Post
    I found my problem and it was a very stupid mistake i accidentally knocked the crank key in and now i cant find it... Oh joy
    Check your PM's & email
    2005 E55 - stock
    1999 GTP 2dr - 9" HAI | Headers | 1.84's | 3.4 | Ported SC|
    Reply With Quote  
     

  10. #10 Re: still trouble after top swap 
    GTP Level Member 99GT2dr's Avatar
    Join Date
    Dec 2007
    Location
    Cibolo, TX
    Posts
    545
    Thanks (Received)
    0
    Likes (Received)
    0
    Dislikes (Received)
    0
    That's no bueno, at least it's nothing major.
    '11 Suburban LTZ
    '99 SSEi
    '99 GT
    '09 G8 GT
    Reply With Quote  
     

Similar Threads

  1. New to GP from bmw and already having trouble !!! help !!
    By 01gtp1506 in forum Introductions/Noob Questions
    Replies: 17
    Last Post: 02-24-2013, 08:23 AM
  2. Please help having trouble with 04 GTP
    By Grandprixtennessee in forum General Tech Discussion
    Replies: 13
    Last Post: 12-07-2012, 02:34 PM
  3. Fuel gauge dosnt work after wireing harness swap and motor swap
    By guimond47 in forum 3.8L V6 Supercharged (L67)(L32)
    Replies: 3
    Last Post: 06-02-2011, 06:01 PM
  4. HID Trouble
    By comengetit in forum Visual/Body Modifications
    Replies: 8
    Last Post: 03-23-2011, 02:23 PM
  5. AC Trouble
    By NickF87 in forum General Tech Discussion
    Replies: 1
    Last Post: 03-01-2010, 10:14 PM
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
  •