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bbk ceramic headers, flowmaster y-pipe & cat-back=problems

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Old 08-21-2015 | 10:43 AM
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Default bbk ceramic headers, flowmaster y-pipe & cat-back=problems

1999 2 door 2wd tahoe. replaced everything. it ran fine at first, once it heated up started running bad. codes p0300, p0155, and p0161. any ideas.

Last edited by primal1; 08-21-2015 at 10:45 AM. Reason: more info
Old 08-21-2015 | 12:45 PM
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check all your o2 wires and make sure they are not touching your new exhaust
Old 08-21-2015 | 12:58 PM
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will do. thanks. what about the mis-fire code
Old 08-21-2015 | 06:16 PM
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no burnt o2 wires
Old 08-22-2015 | 10:19 AM
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according to torque app, o2 sensor bank 2 sensor 1 is acting up.
Old 08-22-2015 | 07:02 PM
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bbk ceramic headers, flowmaster y-pipe & cat-back=problems-screenshot.jpg
Old 08-22-2015 | 07:03 PM
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this is what i'm looking at on the Torque App. the other sensors look flat.
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