Question about 2002 Jeep Liberty

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P0430 Cat efficiency below threshold

My '05 Jeep Liberty 3.7L has thrown a P0430 code twice now. The first time it happened we did a flash update and cleared the code. Now it's come on again in less than 200 miles. I have under 35K miles on my Jeep. Now what do I do?

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  • shilzad Dec 22, 2008

    There's been no O2 code. The repair should have gone under the 880 Emissions warranty, but I was charged. I just got my money back. I just had the 30K service done, plugs and all. The Jeep isn't running any differently that it has been for the past year. There is no indication of trouble other that the check engine light and the P0430 code (both times). With my mileage so low I'm confused. It's not like I buy cheap gas or fill up when the tanker truck is there.



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Was the check engin light on at anytime for an o2 sensor code if so you need a new cat(catalytic converter) flash update i think was a way for a mechanic to get money from you unless it was warranty covered if your o2 was malfunctioning your car was mostlikely running rich which will plug up or burn out a cat

Posted on Dec 22, 2008


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