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2003 Lexus IS300 Question: code p0430



carloswasco, 3.0L 6 Cylinder, Bakersfield, CA, September 24, 2011, 17:40

which one is bank 2 saying to replace o2 sensor or refering to cat conventor check for exhaust leak none found thank you

2 Answers
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  • Answer #1

    September 24, 2011, 18:19

    no, the code does not mean that at all.
    it is a efficiency code for the cat. you most likely need a cat for bank 2 which is the front bank.

    get a real shop to confirm it for you.


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  • Answer #2

    October 11, 2012, 05:21

    I have 2003 is300. the light "check" is on and "trk off" is blincking. Testing showed P0430 code. As I live in Turkmenistan it's problem to find the new suitible cat for my car. Are there any other ways to fix it?

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  • Reply

    crows, April 21, 2013, 00:54

    were you able to fix your car, how did you fix it?

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