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Old 12-25-2009, 08:10 PM   #1
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Join Date: Dec 2009
Location: Glendale az
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Default P0420

I have a 2004 dodge ram 1500 with headers high flow cats and a flowmaster true flow intake and a throtle body spacer getting a code p0420 but cats are pretty new anyone else had this problem and able to fix need to get tags for truck wont check it with the light on.
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04, 0420, 1500, 2004, cats, code, dodge, fixing, flow, hemi, high, p00420, p0420, p420, po420, ram

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