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Thread: Bouncing A/F ratio at cruise

  1. #1
    While cruising, my AEM wideband bounces around like crazy. It spends most of it’s time on the lean side. Is this normal? At WOT it is pretty steady around 12.4.

    Thanks for you help.

    Scott

  2. #2
    Join Date
    Jan 2006
    Posts
    2,590
    <div class='quotetop'>QUOTE(Scott &#064; Feb 2 2007, 11&#58;51 AM) [snapback]81974[/snapback]</div>
    While cruising, my AEM wideband bounces around like crazy. It spends most of it’s time on the lean side. Is this normal? At WOT it is pretty steady around 12.4.

    Thanks for you help.

    Scott
    [/b]
    MINE DOES IT SOMETIMES WHEN ITS REAL COLD OUTSIDE? I DON&#39;T KNOW WHY IT DOES IT THOUGH. WHEN MY TRUCK WARMS UP IT WORKS FINE.

    JAMEST
    12 Sec. Club! SOLD
    La Viuda negra/ a.k.a. Black Betty

    LQ4 6.0L, WCCH HEADS, LEVEL 5 FLT 4L80E TRANS. WITH TRANS BREAK, YANK 3200 STALL, TRICK TURBO, TURBONETICS T-76 TURBO, CUSTOM INTERCOOLED, 68lb INJECTORS, CUSTOM S/D TUNE FROM NELSON PERFORMANCE, COMP CAM 212/214 .557/.559 116+2, SNOW METH. KIT, . ALL INSTALLED AND DYNOED AT NELSON PERFORMANCE: 5**?HP @ 5073rpms and 5**TQ @ 4389rpms AT THE WHEELS WITH 10 PSI OF BOOST. ALL 3/4 TON TRUCK 5435LBS, NOTHING TAKEN OFF, STREET TIRES, AND USUALLY 2 BABY SEATS. WANNA RIDE?
    SOLD***

  3. #3
    Join Date
    Apr 2005
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    4,229
    Mine is like a squirrel on crack at cruise/idle, solid at WOT.

    Pretty normal.
    Gone, but not forgotten!

  4. #4
    Join Date
    Jan 2006
    Posts
    2,590
    <div class='quotetop'>QUOTE(SCIV &#064; Feb 2 2007, 12&#58;46 PM) [snapback]81985[/snapback]</div>
    Mine is like a squirrel on crack at cruise/idle, solid at WOT.

    Pretty normal.
    [/b]

    WHEN HAVE YOU SEEN A SQUIRREL ON CRACK?

    JAMEST
    12 Sec. Club! SOLD
    La Viuda negra/ a.k.a. Black Betty

    LQ4 6.0L, WCCH HEADS, LEVEL 5 FLT 4L80E TRANS. WITH TRANS BREAK, YANK 3200 STALL, TRICK TURBO, TURBONETICS T-76 TURBO, CUSTOM INTERCOOLED, 68lb INJECTORS, CUSTOM S/D TUNE FROM NELSON PERFORMANCE, COMP CAM 212/214 .557/.559 116+2, SNOW METH. KIT, . ALL INSTALLED AND DYNOED AT NELSON PERFORMANCE: 5**?HP @ 5073rpms and 5**TQ @ 4389rpms AT THE WHEELS WITH 10 PSI OF BOOST. ALL 3/4 TON TRUCK 5435LBS, NOTHING TAKEN OFF, STREET TIRES, AND USUALLY 2 BABY SEATS. WANNA RIDE?
    SOLD***

  5. #5
    <div class='quotetop'>QUOTE(Jamest &#064; Feb 2 2007, 11&#58;48 AM) [snapback]81993[/snapback]</div>

    WHEN HAVE YOU SEEN A SQUIRREL ON CRACK?

    JAMEST
    [/b]

    I see them all the time out here in the land of fruit and nuts and meth heads (So. Cal)

    Thanks for the info guys. Just wanted to make sure I didn&#39;t hook something up wrong or worse that my AF was really going that crazy.

    Scott

  6. #6
    Join Date
    Apr 2003
    Location
    Mansfield, Texas, USA
    Posts
    2,462

    Cool

    Normal.
    The superior man is modest in his speech, but exceeds in his actions. - Confucius

    "He who asks of life nothing but the improvement of his own nature, is less liable than anyone else to miss and waste life."- Henri Frederic Amiel

    '01 Chev Z71 LT - '85 BMW 745i TURBO - '88 BMW 750iL - '88 Ford F150 XLT Lariat - '79 MB 240D - '79 MB 280S Euro
    '80 MB 380SE-5.0 Euro - '85 MB 300SD - '87 MB 300SDL - 1990 MB 300SEL - '91 MB 300SE - '91 MB 560SEL

    Let's face it, the red hair... makes 'em wet.


  7. #7
    Join Date
    Aug 2005
    Posts
    383
    Yeah completely normal. Thats closed loop fueling (STFT) at work.

    03 Chevy ECSB, Z71, 6.0L(LQ4), Maggie @ 9PSI, 4l80E, PI Vig 2800, Detroit True-Trac, 4.10, 90mm LS2 TB, Meth Injection, HSW Dry N20, LPE GT7 Cam, 918 springs, Dynatech LT's, Hi Flow cats, custom stainless exhaust, DMH cutouts, DJM Suspension Drop, E-Fans, AirAid, HPT 2Bar SD Tuned, 11.68 @ 114.2

  8. #8
    <div class='quotetop'>QUOTE(SCIV &#064; Feb 2 2007, 01&#58;46 PM) [snapback]81985[/snapback]</div>
    Mine is like a squirrel on crack at cruise/idle, solid at WOT.

    Pretty normal.
    [/b]

    Damn thats funny. I had an idiot today in my store take his hat off and out rolls a crack rock. I hooked him up with some chrome bracelets and a ride in police car. Monday 3 little old ladies were looking at jewelry. Shortly after they left we discovered one of them had dropped her little baggy complete with some crack.
    Our local 911 knows me by voice. With everyone rolling with some tax cash the crack is on the street.

    Zeake

    99RCSB Broke because I wasted thousands and thousands of dollars on my truck.

  9. #9
    Join Date
    Aug 2006
    Location
    LAKECHARLES, Louisiana
    Posts
    276
    Yep its normal. If ya stare at mine it&#39;ll twist ya brain.
    2000 Chevrolet Silverado, 4.8L, K&N polished intake, 4.10 gears, 20x9 KMC SS on front, 22x10 on rear, Dual style pillar gauges, steel cowl hood, 2" rear drop shackles, true duals w/IMCO extreme mufflers w/dumps at rear end, SLP headers. Cam and nelson tune soon to come!!!!!

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