Idle boost

Discussion in 'Kenworth Forum' started by 2012t800, Mar 7, 2019.

  1. Mar 7, 2019 #1
    2012t800

    2012t800 Bobtail Member

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    Mar 7, 2019
    0
    I have a 2012 isx15 that builds 6-10 lbs boost at idle and it sounds like exhaust out of the intake. I have changed all sensors on the motor
     
    2012t800, Mar 7, 2019
    2012t800, Mar 7, 2019
    #1
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  3. Mar 8, 2019 #2
    Newto Trucking

    Newto Trucking Medium Load Member

    359
    226
    Dec 26, 2013
    NE Illinois
    0
    It could be your turbo VGT Actuator needs calibration. When the last time someone removed VGT actuator of a turbo? What’s the mileage on the truck? Do you still have emissions systems or deleted them?
     
    Newto Trucking, Mar 8, 2019
    Newto Trucking, Mar 8, 2019
    #2
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