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Thread: 05 Mustang GT Tuning Options

  1. #1

    05 Mustang GT Tuning Options

    I put Long Tubes, Cats/x-pipe and intake system on an 05 Mustang GT and it went way rich. What are the options, if any, to lean this puppy out. It's throwing codes for the cats because of the rich condition.

    thanks.
    Joe Santacroce

    98 Black/Black A4 Coupe

    Cam, 3.42's, TPIS Headers,
    Random Tech Cats, Yank 3600 TC,
    FLT Tranny, 150hp NX Shot


    81 - Project FrankenSport

    SRIII Tube Chassis, C4 Suspension,
    QA1 Coilovers, Dana 44 w/3.90's,
    T56 6spd, Corbeaus, Tubbed,
    Blown Z06 Engine, SW Headers/Sidepipes

  2. #2
    Almost all CAI kits on those cars make them run lean, and require a retune.

  3. #3
    Not quite sure I understand the response. It definately needs a retune, but I need to lean it out. Also, what can I use to lean it out or is there someone I Can send the ECM to for programming?

    Thanks
    Joe Santacroce

    98 Black/Black A4 Coupe

    Cam, 3.42's, TPIS Headers,
    Random Tech Cats, Yank 3600 TC,
    FLT Tranny, 150hp NX Shot


    81 - Project FrankenSport

    SRIII Tube Chassis, C4 Suspension,
    QA1 Coilovers, Dana 44 w/3.90's,
    T56 6spd, Corbeaus, Tubbed,
    Blown Z06 Engine, SW Headers/Sidepipes

  4. #4
    Senior Tuner
    Join Date
    Jun 2005
    Location
    Southern FL
    Posts
    2,044
    You must have any '05+ Mustang retuned when you change the CAI, period! What CAI did you install, curious?

    Please call us at our shop so we can discuss with you the various tuning options. 251-479-9451 (anyone may help you when you call). Monday thru Friday, 9am to 6pm CST (10am to 7pm EST). You can visit our custom tuning support website here, as well:

    www.FordCustomTuning.com

    I've been tuning the newer Mustangs since their release, and they are actually fairly easy to tune out perfectly.

    Thanks!

    RWTD

  5. #5
    If the car is truly rich then you really need some tuning to make the O2s work now that they are much farther away from the engine, in addition to tuning for the intake.
    Justin Starkey
    Ford and GM custom tuning
    Mobile Dynojet 224xLC
    www.VMPTuning.com
    2006 F250 CC 6.0L 14.3@92
    2006 Mustang 4.0L Vortech 15psi 395rwhp wife's car
    2000 Mustang 3.8L TT [email protected] 450rwhp

  6. #6
    Tuner in Training MT@Banks's Avatar
    Join Date
    Sep 2006
    Location
    Azusa, CA
    Posts
    27
    You'll also want to lengthen the O2 heater duty cycle on-time for the long-tubes.

    Did a lot of work on an '05 with the balls-out Bassanni system.

    The AEM intake didn't help the problem... Almost a 30% table correction to get the MAF accurate again at higher flow.

    Did all the work with a DS Predator and their tuner shop interface.