Type: Posts; User: bonesandchicken
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It is ECM/PCM Internal engine off timer performance.
Hope this helps.
11-21-2009, 02:07 AM
Hi I have a 2004 Chevy 2500 crew cab duraMax diesel and the check engine light has come on.I ran a check on it and came up with 3 codes 1. P0401 insufficient exhaust gas recirculation flow detected...
04-29-2008, 07:11 PM
Sierra, Silverado (VIN C/K) Service Manual 2007 and UP
includes latest bulletins and campaigns.
Body Hardware and Trim
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