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    Bypass For Catalytic Converter removal

    Is there a way to take cats off and bypass the O2 sensors so the check engine light goes off? 2007 Chevy Tahoe LT 4x4. 5.3 litre
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    Cats and tuner

    Is there a tuner that will allow me to bypass the emission codes and turn the check engine light off if I remove the cats? Or is there another fix that I can do
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    Misfires 2,4,6,8 and now 7

    I have a 2007 Tahoe LT 4x4. The check engine light has been on for several months. The code was P420. It did not miss or run bad until recently. Now while idling and driving down the road at constant rpms it surges. When it starts this there is a hum that comes thru the radio speakers.. the...
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