Chevy/GMC Duramax 04.5-05 LLY Discussion of Chevy and GMC Trucks with LLY Duramax Turbo Diesel Engines

codes. please help

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Old 08-07-2011, 02:32 PM
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Default codes. please help

i have a 04 lly and have the code u0106 u0090 u0105 p0193 p0088 p0089. all these came up today. truck also has a bad knock to the idle. lastnite i put the ppe race valve ported cp3 fitting and the ported fuel rail fitting. can someone please help. i checked the glow plug wires and they are fine. my mods are 4inch strate pipe banks 6gun.
 
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Old 05-10-2012, 05:18 PM
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code p0193 is for injector pump, fuel pressure sensor, or fuel pressure regulator thats all i know and im on the injector pump for my 05 3500. hope it helps ya out.
 
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