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Thread: LTG High flow cat P2097

  1. #1
    Tuner in Training
    Join Date
    Aug 2014
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    LTG High flow cat P2097

    Hello, i have a Malibu 15 LTG engine, with Magnaflow High Flow 200 Cell Downpipe, the downpipe is installed about a year ago, with disabling a P0420 DTC, because its was throwing it randomly. and about a month ago it start to pop a P2097 DTC, as i understand it related to CAT also, but why it didnt pops before ? maybe a cat is degraded ? ( Drove about 15000 Miles ).
    May i safely disable this error and forgot it, or try to figure it?

  2. #2
    Senior Tuner cobaltssoverbooster's Avatar
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    Dec 2008
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    the sensor is reading an overrich condition.
    you may have a bad sensor, overloaded the cat, deteriorated cat, or an actual issue causing a rich condition.

    best to find a cure to retain proper operation of the emissions system. While disabling will not cause any mechanical harm to the drivetrain, it might cause the catalyst system to fail its emissions tests.
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    Ecotec help can be found here:
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  3. #3
    Tuner in Training
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    Aug 2014
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    What did you mean for "overloaded cat" ?
    I mostly think that is a "deteriorated cat" because i monitored a graph of the voltage, its looks ok, the precat graph looks ok also.
    also, last week i passed the local emissions test ( sniffer test ) .with that cat without any problems.