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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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    Anyone have a Westin Bull Bar?

    well Westin makes a quality product. I bought an after market one for mine off ebay for $128... Cant tell the difference... took bout 1hr to install. That included unpackaging and rounding up the tools
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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

    Ok well the misfire problem is fixed. Also the surging is fixed. The misfire was fixed with plugs and wires. The previous owners put regular plugs in and they were bad. The surging problem makes me feel dumb but I would have never thought it was in the tranny. When the transmission was fixed I...
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    Misfires 2,4,6,8 and now 7

    Yea it's driven regularly. At least a few hundred miles a week
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    Misfires 2,4,6,8 and now 7

    Yes now 2,4,6,8 and 7 are missing. The p420 code was on for a few months never had a problem with power or surges... Had tranny put in and then the misses started. Sorry I left that out. Bad ground or pinched wire from tranny being installed? Taking Tuesday to have looked at again hopefully...
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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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