street3890 Posted July 24, 2009 Report Share Posted July 24, 2009 Help Quote Link to comment Share on other sites More sharing options...
///BHRpowered Posted July 25, 2009 Report Share Posted July 25, 2009 I assume you mean precats? how do you know its bad. A bad cat can actually improve power since there is zero restriction. On the other hand if it came lose and was blocking something it would be a problem - but you would notice it Quote Link to comment Share on other sites More sharing options...
Matt64341 Posted July 25, 2009 Report Share Posted July 25, 2009 That code is for "Oxygen sensor - no activity detected". It might have gotten unplugged or gone bad. I would clear it and wait to see how fast it comes back. If it returns fast it is probably one of those two reasons. A bad cat is not listed as a possible cause. Quote Link to comment Share on other sites More sharing options...
street3890 Posted July 25, 2009 Author Report Share Posted July 25, 2009 this problem has been with me for SO long the check light has been on forever...i went to mazda and they ran the diagnostics and one of them is bad. Quote Link to comment Share on other sites More sharing options...
///BHRpowered Posted July 25, 2009 Report Share Posted July 25, 2009 they make alot more money by replacing a cat, why not just replace the oxygen sensor first, tis cheap and...well not easy, but easier Quote Link to comment Share on other sites More sharing options...
street3890 Posted July 25, 2009 Author Report Share Posted July 25, 2009 where can i get one? and how much do they usually run? Quote Link to comment Share on other sites More sharing options...
///BHRpowered Posted July 26, 2009 Report Share Posted July 26, 2009 sparkplugs.com or something, I think they have a sister site or you can search there. its where I got one for my Jeep and worked great Quote Link to comment Share on other sites More sharing options...
street3890 Posted July 26, 2009 Author Report Share Posted July 26, 2009 price? Quote Link to comment Share on other sites More sharing options...
street3890 Posted July 26, 2009 Author Report Share Posted July 26, 2009 http://www.sparkplugs.com/more_info.asp?AA...30&pid=2088 Quote Link to comment Share on other sites More sharing options...
latinopikachu Posted July 29, 2009 Report Share Posted July 29, 2009 i have a p0140 Quote Link to comment Share on other sites More sharing options...
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