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Re: 3"downpipe problems '97 9K Aero Posted by jdlincoln [Email] (#640) [Profile/Gallery] (more from jdlincoln) on Thu, 30 Aug 2007 17:14:44 In Reply to: Re: 3"downpipe problems '97 9K Aero, Eric Law, Thu, 30 Aug 2007 05:32:00 Members do not see ads below this line. - Help Keep This Site Online - Signup |
jj
no changes except the new DP. Installed the new DP, everything was fine except I know I did some "stretching and twisting" to get the front 02 sensor re-installed. New "race" in DP cat but rear 02 bung is in the same place as the old one. Original 02 sensor installed..... "CEL" after 2-3-drive cycles. New 02 (rear $220.00)... same issue.
What could have gone wrong here? My suspect is the front 02 (having been twisted and stretched) giving wrong 02 readings which, as I understand from this site, could "confuse" the rear02 sensor. Am I way off base here?
Still need more help on this issue
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