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Ford Mustang: 95 GT still can't figure it out

  1. #1
    RioRedGT
    Guest

    95 GT still can't figure it out

    The EEC keeps giving me codes:
    177 and 176 (left O2 running LEAN and RICH) for quite a while.
    So I went ahead and replaced both O2's with Bosch's and I am still getting
    the same results (although when the car is running right, it feels a little
    smoother).

    Code 311 (Thermactor air system inoperative - right) and 314 (Thermactor
    air system inoperative - left)
    Is this one the result of having removed all the smog setup?

    trouble code references:
    http://www.btinternet.com/~madmole/Reference/FaultCodes.html and Chilton
    manual

    My problem:
    The car starts to stutter and bog down very badly as if it was not getting
    any gas at all. This happens anytime from morning commute to work or when
    the car is already warm. The only way I can get it to drive normal again is
    if I mash my petal at WOT, then suddenly the problem goes away instantly for
    a couple of minutes.....then the stutter/choking/bogging down comes back.
    The engine light does not always come on though, but it has a few times
    while the car is driving fine (perhaps using backup tables?).


    The only way I can avoid all these problems is just unhooking both O2
    sensors and driving like that. Then, the car will NEVER give me these
    problems at all. The TPS checks out fine, car feels strong as if normal.
    EEC appears to use it's backup maps (naturally with check engine on)

    Anyone can give me any idea on what else to check for? I am going crazy and
    I am about to pull my hair out....

    95 GT 5 speed
    BBK long tubes, o/r H and Bassani cat-back
    pullies
    gears
    everything else is stock

    --



  2. #2
    Mike
    Guest

    Re: 95 GT still can't figure it out

    Sounds like the EGR isn't working properly and it might have something to do
    with the missing air pump. Sounds like unmetered air is getting into the
    engine or exhaust before the O2 sensors. Unhooking the O2 sensors forces the
    computer to use the tables and is not very efficient.
    --
    Mike King
    Silver 10th Anniversary Cobra Coupe
    Soon to have a
    Steeda Tri-Ax and K&N
    "Member Since 96"
    ..
    "RioRedGT" <rr.comNOSPAM> wrote in message
    news:fhf0b.62670$tampabay.rr.com... 
    little 
    is 
    for 
    and 



  3. #3
    RioRedGT
    Guest

    Re: 95 GT still can't figure it out

    I forgot to mention code 117 also , Chilton says coolant sensor circuit
    grounded.

    I have had no choice but to disconnect those O2's so I can drive. However,
    last night I unhooked the temp sensor and car ran great without it. The fan
    stays on at the high speed side with the engine light on....but the car is
    now not bucking nor chokin (with the Bosch o2's currently hooked up). I
    know I know, don't start disconnecting sensors cause it will trigger more
    codes or use back up tables (but what other choice do I have right now)

    Do you guys think I should try buying a new ECT sensor?

    Mike, I had this same setup on my 95 GTS before it was caught in a fire. It
    never gave me any codes when I removed the air pump. The egr is blocked off
    since Jegs sent me fox BBK long tubes instead of the 94-95 version. They
    are both the same except the fox doesn't have the egr tube welded in the
    passenger header. Also had this setup in the 95 GTS. No prob... Thanks
    for helping me out..

    --
    ----------------------------------------------
    Jason Roner
    rr.com
    "Mike King" <com> wrote in message
    news:bhs75o$1n16v$news.uni-berlin.de... 
    do 
    the 
    getting 
    (Thermactor 
    getting 
    when 
    again 
    back. 
    normal. 



  4. #4
    RioRedGT
    Guest

    Re: 95 GT still can't figure it out

    I Just installed a new ECT sensor and so far car is running as smooth as
    ice. I disconnected the battery for a while to let the codes erase. I am
    only hoping this fixed it for good. I replaced the o2's but those already
    had over 120K on them, so I don't feel bad replacing those that were not the
    problem.

    --
    ----------------------------------------------
    Jason Roner
    rr.com
    "RioRedGT" <rr.comNOSPAM> wrote in message
    news:gXy0b.63592$tampabay.rr.com... 
    However, 
    fan 
    It 
    off 
    to 
    Chilton 
    instantly 
    times 
    crazy 



  5. #5
    JS
    Guest

    Re: 95 GT still can't figure it out

    Jason..

    Glad to hear you got your car running again. I didn't get to look at this
    thread until now.

    A shorted ECT would most definately cause all types of problems, as you
    noticed.

    As for the O2 sensors, they are in fact a maintenance item and are scheduled
    to be changed every 50-60K miles. At 120K, they were well overdue. Over
    time, their ability to do their job is weakened and they are less accurate
    in providing the computer with the information it needs to have a proper
    air/fuel ratio.

    JS

    "RioRedGT" <rr.comNOSPAM> wrote in message
    newsyz0b.63743$tampabay.rr.com... 
    the 
    is 
    more 
    They 
    Thanks 
    the 
    forces 
    or 
    O2 
    these 



  6. #6
    RioRedGT
    Guest

    Re: 95 GT still can't figure it out

    Thanks JS, it's been 2 days now, and no sign of any trouble. It was very
    tricky... How about a tip for those 94-95 (and maybe newer) if your car
    begins to overheat, disconnect the ECT sensor, the computer will let the fan
    run at high speed regardless of what temp (computer doesn't know).

    The o2's were transferred from the 95 GTS while they were in the long
    tubes...I was switching everything over to the GT before the GTS was picked
    up by Allstate. I still miss that damn car. For some reason, that car
    drove much better than what I have now....the steering wheel was actually
    effortless to turn while this one I have now requires double the effort to
    make turns, etc.



    rr.com

    "JS" <now> wrote in message
    news:RdA1b.214$gnilink.net... 
    scheduled 
    am 
    already 
    circuit 
    The 
    car 

    now) 
    fire. 
    blocked 
    the 
    something 

    normal 
    comes 
    on) 



  7. #7
    Paul
    Guest

    Re: 95 GT still can't figure it out

    at 22 Aug 2003, RioRedGT [rr.comNOSPAM] wrote in
    news:HoA1b.76592$tampabay.rr.com:
     

    Same wheel size? Different tires? Have you checked the rack&pinion and
    powersteering? I remember when my R&P leaked and I had to have it
    replaced, Pony steered so much lighter afterwards...

    BTW, did you get your odo fixed? I found a guy on corral.net who had
    one for sale for mine a little while back. If you are still looking for
    a replacement cluster and Tim can't help you out, post on the various
    boards at corral, mustangworld etc. :-)


    --
    _ 1995 Mustang V6 Coupe (Bright Blue)
    |_| Member Modern Mustangs of North America (MMNA)
    |__|rr.com http://web.tampabay.rr.com/theflock/mustang/
    -----------------------------------------------------------------------
    Handling: Upper strut brace, 17" wheels, K&N Airfilter
    Styling : Mesh grill, Bullitt fuel door, aluminum gauge insert


  8. #8
    RioRedGT
    Guest

    Re: 95 GT still can't figure it out

    The cars looked like twins next to each other, same wheels and everything,
    even the faded out 94-95 tail lights. Unfortunately no cluster yet ;0( I'm
    not really after one right now since I am a little short in funds as I'm
    trying to get back into HCC and fix the major problems first on the
    car...next it needs shocks, front end bushings (lots of clunks), tire,
    discs/pads on all fours, etc.. ;0( I have no choice but to get me a part
    timer for the weekends for some extra $$$! All part of early manhood I
    guess =D

    Have you been on Falkenburg infront of the police station lately? There's a
    car lot there and seems like they sell mostly performance cars. They have a
    sweet orange 87-93 LX, looks extremely clean, 5.0 hatchback. If you know
    anyone that is searching for one of those, they should check this one out.

    --
    ----------------------------------------------
    Jason Roner
    rr.com
    "Paul" <on> wrote in message
    news:32.1.6... 



  9. #9
    Paul
    Guest

    Re: 95 GT still can't figure it out

    at 26 Aug 2003, RioRedGT [rr.comNOSPAM] wrote in
    news:%uV2b.5910$tampabay.rr.com:

     

    I come by there regularly (nwo that the RR xing is open again). They do
    have loads of performance cars. both domestic and foriegn. Quite a few
    Mustangs pop up there, both Fox and SN95 models. Not sure how reliable
    the place is though. There's a 'gold' SN95 (94-98) on Hillsborough
    between I275 and I75. Not my neck of the woods to buy a car tho. :-)

    --
    _ 1995 Mustang V6 Coupe (Bright Blue)
    |_| Member Modern Mustangs of North America (MMNA)
    |__|rr.com http://web.tampabay.rr.com/theflock/mustang/
    -----------------------------------------------------------------------
    Handling: Upper strut brace, 17" wheels, K&N Airfilter
    Styling : Mesh grill, Bullitt fuel door, aluminum gauge insert



 

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