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Thread: Surging/Hesitating After Getting on the Throttle a Couple Times

  1. #16
    Join Date
    Jun 2008
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    Waukesha, WI
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    1,604
    Quote Originally Posted by ledzilla View Post
    This thing is weird about the MAF. I've driven around with it disconnected (because I forgot to plug it back in) and the car behaved normally. Didn't know there was a problem except for the CEL. That came on quickly, but the car ran fine.

    Sent from my SM-G986U using Tapatalk
    Not always the case, but typically if you unplug the MAF and the car runs better, then the MAF is bad.
    You "feel" the difference because you want to "feel" the difference. Since you just spent money on the upgrade you "have" to feel the difference

    I'm looking to eliminate the double pump process I have to follow right now to get the pedal hard

    2004 300A Procharger #0010 D1X
    2003 300A Procharger #0017 D1SC (SOLD. Last I heard, it was in Washington State)

  2. #17
    Join Date
    Feb 2017
    Location
    New Orleans, LA
    Posts
    262
    The easiest way to diagnose it is by seeing what the ecu sees and is doing. Only way to do that correctly is by using a moates quarterhorse.

    $250 for the moates QH. TunerPro RT is free download it and you can drive around logging and see exactly whats not reading correctly when it acts up.
    '03 Marauder 300A / Forged 11:1 Eaton @ 17 lbs - 87 Octane
    decipha @ EFIDynoTuning

  3. #18
    Join Date
    Aug 2007
    Location
    Du Page County, IL
    Age
    43
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    1,168
    Quote Originally Posted by decipha View Post
    The easiest way to diagnose it is by seeing what the ecu sees and is doing. Only way to do that correctly is by using a moates quarterhorse.

    $250 for the moates QH. TunerPro RT is free download it and you can drive around logging and see exactly whats not reading correctly when it acts up.
    Hmm... That may be awhile. Money is tied up in severe weather recovery right now, with a generator rental and having bought 50' of 240V cord to power my well pump. So, is this combo a more sophisticated version of the Bluetooth OBDII adapter and Torque app I currently have?

    Sent from my SM-G986U using Tapatalk
    "Beast, Jr."

    2003 300 A, 4.10:1 gear, JLT CAI, Marty tune, Nitto 420S and 555 tires, NGK TR55 plugs, J-mod, Skull lock knobs, and a new windshield

  4. #19
    Join Date
    Aug 2007
    Location
    Du Page County, IL
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    43
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    1,168
    Quote Originally Posted by blazen71 View Post
    Not always the case, but typically if you unplug the MAF and the car runs better, then the MAF is bad.
    What I have experienced during the 15 years of owning this car is no noticeable difference with the MAF unplugged. Happened multiple times over the years.

    Sent from my SM-G986U using Tapatalk
    "Beast, Jr."

    2003 300 A, 4.10:1 gear, JLT CAI, Marty tune, Nitto 420S and 555 tires, NGK TR55 plugs, J-mod, Skull lock knobs, and a new windshield

  5. #20
    Join Date
    Mar 2008
    Location
    Next door to my neighbor
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    50
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    20,353
    Where are you living nowadays Mike? If I could ever get a free moment maybe I could stop over and have a looksie?


    Sent from my iPhone using Tapatalk Pro
    SOLD 12/31/2021

    Cobra short block / ProCharger F1-A / Cog drive upgrade / Manley valves / Brian Tooley Racing valve springs / 80# inj. / -8 fuel line / -6 return / Aeromotive 340 pumps and regulator / 2012 GT500 TR6060 six speed / twin disc clutch / Driveshaft Shop GT500 upgraded CV joint shaft / BA5000 blow thru MAF/ 4.10's / Ford Racing 31 spline set up and Girdle / Metco D.S. safety loop / Stainless Works headers, cats, and everything else out back / ClassGlass hood / Bob's hood strut mod / Hurst line lock / Metco control arms / Addco front and rear sway bars / Monroe severe duty shocks all around / Race concepts rotors / Badgeless grille / 35% tint / FBM's interior LED kit and ambient lighting kit / Pioneer FB700 deck / kenwood speaker 4 Ch. / Rockford Fosgate 10" sub and amp / Kicker 6 X 8's all around / back up cam / bluetooth / Pioneer Xm / 704 RWHP 603 RWTQ tuned by Mo's Speedshop.

  6. #21
    Join Date
    Aug 2007
    Location
    Du Page County, IL
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    1,168
    Quote Originally Posted by justbob View Post
    Where are you living nowadays Mike? If I could ever get a free moment maybe I could stop over and have a looksie?


    Sent from my iPhone using Tapatalk Pro
    I'm out on east edge of Joliet nowadays. The Marauder is sharing a somewhat spacious garage with a '79 Marquis coupe now. Easy access from I-355 or I-80.

    Sent from my SM-G986U using Tapatalk
    "Beast, Jr."

    2003 300 A, 4.10:1 gear, JLT CAI, Marty tune, Nitto 420S and 555 tires, NGK TR55 plugs, J-mod, Skull lock knobs, and a new windshield

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