IS250 AWD PO430 code
09-26-14, 01:19 PM
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IS250 AWD PO430 code
Hi guys, I'm having this annoying issue that started a few months ago when my exhaust had a hole in it because of corrosion. Right before I changed the mid pipe it started throwing the PO430 code - Catalyst efficiency below treshhold. I thought it was just because of the exhaust leak so I replaced the entire mid pipe with a custom fabbed Megan Racing midpipe.
Everything seemed to have been fine but after driving over 500 miles the light came up again. Same code. I'm wondering whether it's the cats that aren't good or maybe I need to replace the O2 sensors on the mid pipe. Any help would be greatly appreciated. Tell me what you guys think from your experiences. I need to pass emissions soon so I need to figure it out.
Everything seemed to have been fine but after driving over 500 miles the light came up again. Same code. I'm wondering whether it's the cats that aren't good or maybe I need to replace the O2 sensors on the mid pipe. Any help would be greatly appreciated. Tell me what you guys think from your experiences. I need to pass emissions soon so I need to figure it out.
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