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Thread: My car idles like crap

  1. #1
    Junior SCH Member
    Join Date
    Feb 2003
    Posts
    7

    My car idles like crap

    Please someone help me. Since installing my vortech the car won't idle. It fluxuates from 600-900rpm. Of course it didn't do this when I had it dyno/tuned. I am at a loss, being new to the supercharger world.

    Here is the mods: 2001 Mustang GT, S-trim w/ 3.33 pulley, spearco A/A intercooler, 38# injectors, Walbro 255lph, 80mm C&L MAF, 70mm throttle body, autologic chip. The car dyno'd at 385rwhp, 377rwtq.

    Don't get me wrong the car runs like a champ, but having trouble finding an idle.

    Thanks,
    Elwin
    2001 TRUE BLUE MUSTANG GT

    60FT: 1.90
    ET: 12.3
    MPH: 113.9

    389.5 RWHP 387.7 RWTQ

    In the Garage:
    2001 Supercharged Mustang GT
    2002 Eddie Bauer Expedition
    2003 FLHR Road King

  2. #2
    Junior SCH Member
    Join Date
    Jan 2003
    Posts
    8
    Possibly the idle air sensor. Remove, clean and replace it. Hopefully that will help.

    Jerome
    96 Cobra
    Rebuilt Motor
    Vortech S Trim with 3.12" pulley
    Full Saleen Body Kit
    Few other things...
    SAE Corrected 510rwhp 446rwt
    11.926 ET @119.88 mph 1.978 60FT

  3. #3
    Banned by Admin
    Join Date
    Jul 2003
    Location
    N.California
    Posts
    206
    Maybe its the C&L, I had idle problems with mine switched to Pro-M, idles fine.

  4. #4
    Senior SCH Member
    Join Date
    Jan 2003
    Posts
    110
    try disconnecting the battery and letting the computer re-learn. also i would swap out mass air meters as well to test that if the reset doesn't work.
    --
    93 GT

  5. #5
    Junior SCH Member
    Join Date
    Feb 2003
    Posts
    13
    I bet 10 to one , it's your mass air meter ..
    2002 mustang GT auto , off rd x pipe , so S trim v-1 , 42 pd injectors , 255 in tank pump , autologic chip , In need of gears BAD !!!

  6. #6
    Vacume leak!

    Razor.
    2001 Cobra #719
    MODS: Vortech S-Trim, Aftercooler, Mini Race Bypass Valve, AFM Power Pipe, 90m.m. LMAF, 42# Injectors, Superchips Chip, 03 Cobra Fuel Pump, Trunk Mount Battery, Auto Meter Gauges, Solid Axle Swap, 4:10 Gears, O/R H-Pipe, Mac Cat-Back, Flowpath Mufflers, Pro 5.0 Shifter, Mac Subframe Connectors, D/S Safety Loop, McLeod Clutch, Steeda Sport Springs, Moser 31 Spline Axles, Eaton Posi, Granatelli Upper & Lower Control Arms, AFS 2003 Chrome Cobra Wheels (17x9, 17x10.5), 315/35/17 Nitto DR's.
    Dyno: 496 RWHP. & 422 RWT. (SAE Corrected)
    MY WEBSITE: Click Here
    ww.ModularFords.com -4V Forum Moderator

  7. #7
    Junior SCH Member
    Join Date
    Feb 2003
    Posts
    7
    Thanks for the replys, I don't think it's a vaccum leak, I've checked all those out. I'm leaning towards the MAF. I'm on the look out for a Pro-M 80mm. Let me know if any of you see one. Thanks
    Elwin
    2001 TRUE BLUE MUSTANG GT

    60FT: 1.90
    ET: 12.3
    MPH: 113.9

    389.5 RWHP 387.7 RWTQ

    In the Garage:
    2001 Supercharged Mustang GT
    2002 Eddie Bauer Expedition
    2003 FLHR Road King

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