You're not going to believe this!!!

Discussion in 'Fox 5.0 Mustang Tech' started by FLA5.0, Jun 27, 2004.


  1. FLA5.0

    FLA5.0 New Member

    Joined:
    Jun 25, 2004
    Messages:
    45
    Likes Received:
    0
    Trophy Points:
    0
    Yesterday I posted a thread titled "Rough idle driving me nuts", begging for help with an erratic, rough idle in my 93 5.0. This was due to the fact that I had been battling this problem for about two weeks. I had pulled codes 14 and 19 from the ECU and performed the following actions which did no good:

    Distributor...replaced
    TFI...tested-passed
    IAC...replaced
    plugs...replaced
    plug wires...replaced and upgraded
    (2)o2 sensors...replaced
    MAF...removed /cleaned
    EGR valve...removed/cleaned
    throttle body/EGR spacer...removed/cleaned
    gaskets for all the above...replaced
    Timing..set to 12 deg BTDC
    :bang: :bang:

    Spent 300+ bucks and over 12 hours before I gave up and drove it 60 miles north to an old friend who owns a mechanic shop. Turns out the codes were actually 41 and 91...and the whole problem, (even the cause of the lean o2 condition), was a split vacuum line way up under the upper plenum!!!!!!! I AM SO STUPID!!! I guess it's true -- when all else fails...go back to the basics! BTW, Thanks White 95 5.0 for your help! :hail2: :hail2: :hail2:
    #1
  2. White 95 5.0

    White 95 5.0 New Member

    Joined:
    Jul 12, 2000
    Messages:
    12
    Likes Received:
    0
    Trophy Points:
    0
    No problem, Now spray that thing so I can have a good run :D
    #2
  3. 88stangmangt

    88stangmangt New Member

    Joined:
    Nov 25, 2003
    Messages:
    2,342
    Likes Received:
    0
    Trophy Points:
    0
    how did you get that bad of a mess up???
    #3
  4. Kevin R.

    Kevin R. New Member

    Joined:
    Jun 3, 2004
    Messages:
    526
    Likes Received:
    0
    Trophy Points:
    0
    loL.......sdrawkcaB :D
    #4
  5. FLA5.0

    FLA5.0 New Member

    Joined:
    Jun 25, 2004
    Messages:
    45
    Likes Received:
    0
    Trophy Points:
    0
    I bought a cheap Actron OBD I scanner. Apparently right before the scanner flashes codes during the KOER test, it sends one "Dynamic Response" flash. I misunderstood this single flash to be a 1 followed by a 4. Code 14 pertains to a loss of signal from the PIP (Profile Ignition Pickup). Therefore, I replaced the entire distributor, wires and plugs. As I said, I found out later that the codes were 41 and 91...not 14 and 19. It just snowballed from there...oh well, all the extra hardware must have done some good, she runs better now than ever! :shrug:
    #5
  6. 87'GTstang

    87'GTstang New Member

    Joined:
    Feb 17, 2004
    Messages:
    1,026
    Likes Received:
    0
    Trophy Points:
    0
    Just think of it as an excuse to have done what you did - you were probably going to get around to it one day anyway :nice:
    #6
  7. Idwitheld-1`

    Idwitheld-1` New Member

    Joined:
    Nov 30, 2003
    Messages:
    336
    Likes Received:
    0
    Trophy Points:
    0

    I had the exact thing happen to me...even the same hose in the same "hidden" location! I was so happy to have the return of touchless starting and a rock solid idle!!!
    #7
  8. enyawix

    enyawix Member

    Joined:
    Dec 18, 2005
    Messages:
    509
    Likes Received:
    0
    Trophy Points:
    17
    Very thorough tuneup.

    Where is the OBD1 connector on the 89 to 93 5.0? I want to do a very thorough tuneup.
    #8
  9. sunil6784

    sunil6784 Member

    Joined:
    Mar 31, 2005
    Messages:
    624
    Likes Received:
    2
    Trophy Points:
    18
    Near the driver's side shock tower...It's got a black cover on it, and says "EEC Test Port" I think...


    Sounds like you did a very thorough tune up on it. Like you said, everything you did only made it run better. IMO that's always time well spent.
    #9
  10. HISSIN50

    HISSIN50 "How long does it take to get help in here? SN Certified Technician

    Joined:
    Nov 30, 1999
    Messages:
    31,148
    Likes Received:
    13
    Trophy Points:
    79
    Wow, this baby's only a couple years old. :D
    #10
  11. Daggar

    Daggar New Member

    Joined:
    Jul 20, 2004
    Messages:
    5,543
    Likes Received:
    111
    Trophy Points:
    0
    Ya just gotta love Walmart special code readers. No more dot-dot-dash-dash-hooey. Just code numbers. :D
    #11
  12. 88_GT_5_oh

    88_GT_5_oh Sportin' a turbo 5.0 in Canadistan

    Joined:
    Jul 5, 2004
    Messages:
    961
    Likes Received:
    1
    Trophy Points:
    0

    i still use an analog voltometer lol.... sometimes it takes me a couple times to get the codes cause i misinterpret them


    oh well this is why i bought a PMS lol (well not the only reason)
    #12
  13. Blakthorn

    Blakthorn Member

    Joined:
    Jul 24, 2004
    Messages:
    324
    Likes Received:
    0
    Trophy Points:
    16
    is there a list somewhere that tells you what every code/# means?
    #13
  14. Euphoric306

    Euphoric306 New Member

    Joined:
    Apr 5, 2004
    Messages:
    910
    Likes Received:
    0
    Trophy Points:
    0
    haynes manual
    #14
  15. jrichker

    jrichker StangNet's favorite TOOL SN Certified Technician Founding Member

    Joined:
    Mar 10, 2000
    Messages:
    21,448
    Likes Received:
    334
    Trophy Points:
    134
    http://www.troublecodes.net/Ford/

    The codes are listed, but there isn't much help on how to find and fix the problem that caused them.

    That's what Stangnet is for.:SNSign:
    #15
  16. Daggar

    Daggar New Member

    Joined:
    Jul 20, 2004
    Messages:
    5,543
    Likes Received:
    111
    Trophy Points:
    0
    Yep... only here, the rule is that we must have you swap a $270 minimum in parts that have nothing to do with the problem before we turn you onto the real cure. Just make sure you buy American. :p
    #16
  17. enyawix

    enyawix Member

    Joined:
    Dec 18, 2005
    Messages:
    509
    Likes Received:
    0
    Trophy Points:
    17
    What plugs? My plugs are so old they are rusting.
    #17
  18. mustangphil

    mustangphil Founding Member

    Joined:
    Jul 9, 2002
    Messages:
    1,667
    Likes Received:
    12
    Trophy Points:
    48
    Eh, little dyslexia never hurt anyone.
    #18
  19. Strype

    Strype Cuthbert catcher Founding Member

    Joined:
    May 11, 1999
    Messages:
    2,711
    Likes Received:
    371
    Trophy Points:
    104
    Ummm... excuse me, why is this thread 2 years old???
    Thanks!
    #19
  20. Daggar

    Daggar New Member

    Joined:
    Jul 20, 2004
    Messages:
    5,543
    Likes Received:
    111
    Trophy Points:
    0
    Because enyawix opened the thread back up to ask a question which by the way, is exactly what you're supposed to do.

    Search first
    Reopen old thread vs. starting a new one

    Welcome to Stangnet enyawix. It's nice to see a new face that actually knows how to use a forum from time to time. :nice:
    #20

Share This Page