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2011-2014 Mustangs
Exhaust
2014 GT O2 sensor help
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<blockquote data-quote="nyuk98GT" data-source="post: 17027707" data-attributes="member: 166799"><p>utlong31,</p><p></p><p>Sorry to hear about the O2 sensor troubles. Without cats, the rear sensors will not see a temperature rise and will 'think' the cat is faulty. The Lund tune should have the rears off but that is my guess, not fact. </p><p></p><p>The bungs should be located between 10 o'clock and 2 o'clock when looking down the pipe. This keeps the sensors from harm by water vapor condensing as the header pipe cools and any solids (should be none but...) that might be sitting on the floor of the pipe. </p><p></p><p>The advice in earlier replies to weatherproof the connection points is really good and eliminates one path to problems. </p><p></p><p>HTH, </p><p></p><p>Chris</p></blockquote><p></p>
[QUOTE="nyuk98GT, post: 17027707, member: 166799"] utlong31, Sorry to hear about the O2 sensor troubles. Without cats, the rear sensors will not see a temperature rise and will 'think' the cat is faulty. The Lund tune should have the rears off but that is my guess, not fact. The bungs should be located between 10 o'clock and 2 o'clock when looking down the pipe. This keeps the sensors from harm by water vapor condensing as the header pipe cools and any solids (should be none but...) that might be sitting on the floor of the pipe. The advice in earlier replies to weatherproof the connection points is really good and eliminates one path to problems. HTH, Chris [/QUOTE]
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