Need help with p0430
#1
Pole Position
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Location: Illinois
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Need help with p0430
First let me start by saying that I did search around when I first had this issue and thanks to you guys I was able to fix this about 2 months ago. I replaced both cats with Eastern Catalytic I had a custom muffler shop replace my y pipe with a custom piping they did to fix my exhaust leak. On top of that I replaced my o2 sensor when I first got this problem. I passed Illinois emissions with flying colors. I got the CEL this morning and checked the resistance on both o2 sensors and they seemed to be ok. As mentioned I replaced this o2 sensor. What else can this be? I am frustrated. Thanks in advance!!!!!
#2
Driver School Candidate
According to the manual, P0430 -Catalyst system efficiency below threshold.(bank 2)
- Gas leak on exhaust system
- Heated oxygen sensor
- Three way cat converter.
you stated you changed O2 sensor. Did you go with denso and the right part?
- Gas leak on exhaust system
- Heated oxygen sensor
- Three way cat converter.
you stated you changed O2 sensor. Did you go with denso and the right part?
#3
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Yes. It's the factory o2 sensor.
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