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Message: <blockquote data-quote="rb30dett" data-source="post: 783144" data-attributes="member: 13392">Hello, I have not formally introduced myself in the newb forum; I will get to it soon, just need to post a quick question. My 98 Cobra is throwing a few codes. I installed a CAI, throttle body, x-pipe, exhaust, and a tuner and everything was fine. These mods were done about 3 weeks ago. I had Ford throw in a set of 3.73's and a bearing rebuild kit. This is where I noticed an issue. Here are the codes...P0420- catalyst system efficiency below threshold (b1)P1000- obd systems readiness test not completeP1260- theft detected, vehicle immobilizedMy first guess is they might not have unplugged the battery before they started working on the gears because everything seemed to be working perfectly, or they are codes that need to cycle out of the system. P1260 is obvious BS because I can drive it. If anyone can shed some light to the subject, that would be great. Thanks a lot for your help.</blockquote>