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  1. #1

    Default Engine Codes 22, 32, 42

    Noticed the other day that the truck is running terrible like it is misfiring. Got the codes 22, 32, and 42. I have several TPS's and tried all of them but I am still getting the code. EGR Valve is brand new and so is Distributor, wires, spark plugs, ignition module, spark control module. Made sure timing is where it is supposed to be. Cant really figure this one out so some help would be appreciated.
    93 K1500 5spd 5.7 350
    Holley 670 cfm
    K&N Cold Air
    Hypertech prom
    Custom Exhaust
    Speed pro forged flat tops
    Msd Ignition
    Edelbrock cam

  2. #2
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    mfleetwood's Avatar
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    The only difference I can see that you didn't mention is the EST circuit grounded. Here is a list that may help you identify the problems unfortunately, this is not one of those comprehensive ones that list possible fixes.

    Hopefully, this bump will help in getting more feedback for you.

    http://www.extreme-check-engine-ligh...%20Decoder.htm


    Mike (Denver, CO) - 2008 Sierra 1500 Z71 SLE 5.3L 4WD

    SUSPENSION: Rancho 4" Suspension Lift; Rancho RS9000XL Shocks; Rancho Skid Plates; Rancho MyRide Wireless Shock Controller;
    TIRES:
    BFG All Terrain KO 315/70/17
    DRIVE TRAIN: 4.56 Gears; Detroit TrueTrac Differential; True Cool 40k Transmission Cooler
    PERFORMANCE: DiableSport Predator Tuner; Custom Tuned by Diablew; Magnaflow Exhaust; AFE Cold Air Intake
    ELECTRONICS: Kenwood DNX6180 Touchscreen; Subthump box w/10" Kicker; Driver Information Center (DIC); Rear View Camera
    ACCESSORIES: Westin Brush/Grill Gaurd; Westin Nerf Bars; Truxedo Tonneau; 20% Tint; Tow Mirrors w/Heat & Signals

  3. #3

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    Quote Originally Posted by mfleetwood View Post
    The only difference I can see that you didn't mention is the EST circuit grounded. Here is a list that may help you identify the problems unfortunately, this is not one of those comprehensive ones that list possible fixes.

    Hopefully, this bump will help in getting more feedback for you.

    http://www.extreme-check-engine-ligh...%20Decoder.htm
    Thank you for your help. I forgot that I unplugged the bypass wire to check the base timing and I did not disconnect the battery to reset the code. Will this give the code 42?

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