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Thread: Question with MAFT/ SAFC...

  1. #1
    Join Date
    Dec 2009
    Location
    330, Ohio
    Posts
    16

    Default Question with MAFT/ SAFC...

    I posted this over on tuners but thought I'd try here and see what kind of responses I got..

    So I'm having some issues and am hoping that someone will be able to help me out. I used to have dsmlink and my car was tuned perfect, well something came up I had to sell it. In the meantime my Eprom took a shit on me so now my tuning setup consists of a Non-Eprom, SAFC, AFPR, Wideband, datalogger, and MAFT.
    My car will start up decent and idles pretty strong. I can rev it while its idleing and it revs up nice and everything. I have my "Base" Setting set at "6" on the Translator. Everything else is at 0. I have everything set at 0 on the SAFC. As soon as I'm in gear and trying to go I have alot of hesistation/ bucking/ and backfiring...
    I hate tuning and am trying to get my car "driveable" to break in my clutch and have someone tune it for me.
    What am I doing wrong??? What should my Throttle Points be set at? I need some serious help, Is anyone close to youngstown ohio and wanna come help?!

    Any help is appreciated.

    My setup is..
    t57, 680's, 255lph, front mount, 3" gm maf/ translator, afpr, open exhaust, 2.5" hard charge pipes.. 17psi

  2. #2
    Join Date
    Mar 2005
    Location
    Clarksville, PA
    Posts
    1,581

    Default

    Assuming this is a 1g vehicle by your username you have the MAF-T set for 490cc injectors, which is obviously too small of an injector causing the car to inject way more fuel than necessary, causing your problem. For 680's (assuming you have the 2.xx translator) you would want the Base knob at the "A" setting and the AUX knob at the 1 setting. Those settings should at least get you driveable. When I had a AFC/MAF-T combo on my car with evo9 560's and a 190, I still had to pull like 13 percent more fuel out with the afc on the lo-throttle settings and 15-23% out on the hi-throttle settings. If your having someone else tune it, I would set the maft to the settings I said and leave the AFC zeroed, ensuring its on the rich side. Keep your foot out of it, watch the wideband (best tuning tool EVER invented IMHO),and drive it easy until you get it tuned properly.
    Jeff Cole
    My car sucks.
    ---------------------------------------------------------------------
    Have you ever noticed? Anybody going slower than you is an idiot, and
    anyone going faster than you is a maniac.
    -- George Carlin
    ----------------------------------------------------------------------
    Quote Originally Posted by dsmusmc View Post
    "If you wont stand behind our troops then stand in front of them."

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