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603 Posts
Discussion Starter · #1 ·
Hi guys,
I've got a friend with a 2003 ctd nv5600 He has an BD X tuner box set on the perforance/90hp setting. He just threw two codes p2121 and p2122 the app sensonser low codes. Has any one had this problem? Do you guys have any idea whats wrong?

Thanks in advance
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