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  1. #11

    Red Z71 Max's Avatar
    Join Date
    May 2011
    Myrtle Beach, SC
    Blog Entries


    You may just need to clean the Mass airflow Sensor. Sometimes they will get dirty when disturbing the air intake system. To clean it, just use a q-tip with rubbing alcohol and gently wipe the wire spanning across the MAFS> It may help get rid of the code. Also make sure you have a good connection on the MAFS connector plug!! Good Luck!!

    (Scott) Myrtle Beach, SC
    January 2012 ROTM WINNER
    2011 GMC Sierra Z71 MAX 6.2 L w/ Trailering Package
    Rough Country, XD Rockstars, Nitto Trail Grapplers, N Fab, Lund Genesis, Putco, Gator Grip,
    Flowmaster 40 series, Diablosport InTune, Banks Ram Air CAI,
    WeatherTech, AVS Aeroskin, Tow Mirrors,

  2. #12
    Jr. Apprentice
    Join Date
    May 2010
    Colville, WA


    Sometimes it takes a lot more than 100 miles for the PCM to clear a code on its own. It may be simpler than you think to fix your issue. Reading the code is the one of the first steps to diagnosing issues.

    Have it read for codes and post them to the forum. You'll get plenty of help figuring it out.
    2000 Chevy Silverado 1500 ECSB Z71 5.3L LM7

  3. #13


    No more check engine light!! It went away on its own, even though the K&N rep said the light should have never come on. Oh well, truck runs and sounds great, thanks everyone for your help.
    2011 Silverado 1500 LT, 5.3L, 6-spd

  4. #14
    Sr. Apprentice
    Join Date
    Aug 2010
    Hartly, Delaware, United States


    Quote Originally Posted by Kapelusprime View Post
    First thing, ditch the spacer. Second, think of it this way; If you put an air intake system on your truck in order to increase and smooth air flow. If it's not lined up you've got impeded airflow. The KnN sticker does not increase Hp, I'm not tying to sound sarcastic. It's just I see a lot of people getting ripped off with what is more often called the KnN, Volant etc, dirt straw. The Hp gains on the box are BS, except when coupled with and exhaust and a proper tune. Thinking in the terms, "If it sounds to good to be true" If all it took to get 12 to 20 more Hp out of a motor is clamp on a piece of straight pipe with a high flow filter; Don't you think all car manufacturers would have one on every car? K&N puts a Hp/torque graph on the box, this is eye candy BS as well.

    You will never see a K&N, Volant etc commercial or youtube clip with your truck on a rolling Dyno and a before and after video clip showing a 12 to 20 Hp gain. Why? Because your new intake will never deliver 12 to 20 hp without the motor trying to suck in all that easy to breath air. Your motor wouldn't know what to do with that optimal combustion condition without a tuned ECM and MAF program that tells it to. A motor tuned for economy will stay that way regardless of the intake snorkel.

    VVT motors do make them slightly more adaptive, however that said. You can get just as much Hp using higher grade gas. I'm not trying to come off as the snotty know it all mechanic; I'm just bent over company's selling this magic bullet that is going to turn your car or truck into a sport edition over stock and improve mileage bla, bla. I'm kind of fed up with the aftermarket shell game as you can tell. There are some good companies making good products that work, there is something you must read between the lines. When you see "results may vary", this usually means do your homework, save your money and do a complete build up when you have all the parts on your shopping list together.

    I have a 08 with a 5.3 and put a aem intake on from my 2000 5.3...didnt notice no difference. took it off put a throttle body spacer on. not a noticeable difference but who cares wen you got a sweet turbo soundin whistle. put a s&b intake on and you can hear and feel the power gain! so i wouldnt say that all intakes are the same
    2008 Chevy Silverado Z71
    -Y pipe Dual Exhaust 4 inch tips
    -7.5 inch Rough Country Lift
    -3 Inch Body Lift
    -2 inch Add-A-Leaf
    -35x12.5r18 Nitto Trail Grapplers
    -Moto Metal 951 Rims
    -S&B Cold Air Intake
    -Airaid Throttle Body Spacere
    -EFI Live
    -LED Taillights
    -LED Interior Lights
    -Recon Big Rig Light Bars
    -HID 6000k Fog lights
    -5% Tint
    -Billet Grille

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