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CEL P2251 with LT headers. o2 sensors?

kapiteinlangzaam

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Hi folks,

First issue in a long time for me.

2016 GT with 70k miles.

Been running LTH catless LTs for the last two years and 15-20k miles. Tuned by Lund. Zero issues.

Suddenly got a crappy idle, occasional stall, and even more terrible fuel consumption than usual.

My Ngauge is picking a stored and active P2251 code. If I erase the code it comes straight back.

Anyone else had this? Likely to be the rear O2s? (I run them with extensions).

Rockauto has these: WALKER PRODUCTS 250241185 OEM Based Sensor

Are they any good (I am a 6MT car).

Thanks!

IMG_20211110_214352.jpg
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Jackson1320

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That’s your front o2sensor. Replace both front o2s
 
 




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