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Thread: installing fans

  1. #1
    Join Date
    Aug 2005
    Location
    Houston,Texas
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    290
    were installing lt1 fans w/ harness and everything done except the wire that goes to the pcm . I heard its the 42 pin , but there is nothing there
    99 ECSB 5.3 LS6 CAM AND SOME BOLT-ONS BEST TIME 13.6@97MPH

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  2. #2
    Join Date
    Nov 2003
    Location
    Denton Texas
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    42 and 33. Also have to turn the function on in the PCM. Did you buy a prebuilt harness? Allen usually includes the pins for the PCM.
    See my truck data in the "My Garage" section here... http://www.ls1truck.com/forums/my-ga...tml#post191709

  3. #3
    Join Date
    Nov 2005
    Location
    ohio
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    1,712
    <div class='quotetop'>QUOTE(adrenalinep &#064; Jul 21 2006, 09&#58;29 PM) [snapback]58645[/snapback]</div>
    were installing lt1 fans w/ harness and everything done except the wire that goes to the pcm . I heard its the 42 pin , but there is nothing there
    [/b]
    you have to physically push the pin into the #42 location on the computer harness. it will click when its in all the way.
    07 SILVERADO CLASSIC 2500 HD 4x4 CREW CAB LT3 DURAMAX LBZ/ALLISON 6 SPEED 5'' MBRP Turbo back exhaust 6'' TIP /NO CAT- NO MUFF/ AFE Intake/ EDGE HOT JUICE /MERCHANT AUTO STG III Built Allison/P I ConverterTTS Twin Lift Pumps. Tierod sleeves/Cognito braces.17x9 Moto metals_______ Old Truck ,04 Z-71/Turbocharged,/cam/stall/Zippy Built TRANS/Nelson Tuned------

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