idk how would i find out? im sure its overboost code i mean it only comes up when i see the needle go around 29 psi
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2001 F250 X-cab 7.3 4X4
Performance
-afe stage 2
-mbrp 4" straight pipe w/ rbp 6" tip
-autometer gauges: trans, egt, boost
-zoodad
-PHP/TW "twin tuned chip" (on the way) 
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