Subject	Re: Code 73 TWC Function LH Bank What does it me
Posted by	sandmanz32 on November 09, 2011 at 12:45 PM
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In Reply To	Code 73 TWC Function LH Bank What does it mean? posted by SMAZ on November 05, 2011 at 09:42 PM
Message	The rear o2's only purpose is to monitor the effiency of the precats. If you're getting a 73 or p0430 the you have a bad cat. If youre running test pipes then thats the problem. If the rear o2 is good remove the cat and inspect it for being blown out or missing material. If it is and emissions isnt an issue in your state id just gut it, or install test pipes and space the o2 up with and antifouler. Your main cats shouldnt cause a CEL due to the fact that nothing is monitoring them. ......And just as they're about to catch me.....Twin......Turbos......Kick.......In!
Follow Ups	Code 73 TWC Function LH Bank What does it mean? - SMAZ 21:42:50 11/05/11 Re: Code 73 TWC Function LH Bank What does it mean? - jmallard 22:54:22 11/05/11 I'm reading from the CEL Light on the dash (7 and 3). From - SMAZ 01:50:51 11/06/11 That reads as Code 0703, Left Bank - BoneZ (MD) 11:28:40 11/08/11 I used the Bosch OEM like O2 sensor from Advance Auto - SMAZ 22:07:06 11/08/11 When you swapped out the exhaust and O2 sensor you had the - BoneZ (MD) 23:07:53 11/08/11 Yeah, did that. I'll drive it today and see. (n/m) - SMAZ 10:34:02 11/09/11 Re: Code 73 TWC Function LH Bank What does it me - sandmanz32 12:45:22 11/09/11 His cats should be fine, what else could cause the code? - BoneZ (MD) 16:52:23 11/09/11 Precats, or rear o2 sensors - sandmanz32 05:23:41 11/10/11
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