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Power Strokes
6.7 Aftermarket
P0401 Fartan
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[QUOTE="cappa, post: 1483857, member: 22679"] Are you talking the egr flow insufficient code? I am on the 2.1 as well and get the egr code, maf correlation at higher load, and exhaust pressure sensor erratic constantly. This is with the nl stage 2. Get a code almost every time I drive it. If it didn't have a working exhaust brake I would have went back to the old warhammer tunes. They have been promising the ost update with these issues addressed for a while now, but we all know how accurate their time frames are. Seems to drive great but super annoying that they release a set of tunes that wouldn't at least address the egr code. [/QUOTE]
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