david1walker Posted July 21, 2010 Share Posted July 21, 2010 Just had the check engine light pop up, and Advance pulled a code 430 on my 95 LS400. Something related to either the O2 sensor, or the CAT. What side L or R is that, as well as Front or Back??? Apparently the car has 4 O2 sensors..... Quote Link to comment Share on other sites More sharing options...
billydpowell Posted July 21, 2010 Share Posted July 21, 2010 P430 LS400 Catalytic converter failure my 97 did the same thing at 246k I replaced the two front converters. no more problems. I got mine from mufexpress on ebay they are $115. each and a perfect fit see #320535514532 good luck... they are not hard to put on. OH, still driving it, still no lights PS o2's hardly ever fail, they just read the gas that flows thru and tell the ecm if the cats are working.. mine didnt Quote Link to comment Share on other sites More sharing options...
david1walker Posted July 21, 2010 Author Share Posted July 21, 2010 P430 LS400 Catalytic converter failure my 97 did the same thing at 246k I replaced the two front converters. no more problems. I got mine from mufexpress on ebay they are $115. each and a perfect fit see #320535514532 good luck... they are not hard to put on. OH, still driving it, still no lights PS o2's hardly ever fail, they just read the gas that flows thru and tell the ecm if the cats are working.. mine didnt Thanks a million! D Quote Link to comment Share on other sites More sharing options...
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