Chevy/GMC Duramax 01-04 LB7 Discussion of Chevy and GMC Trucks with LB7 Duramax Turbo Diesel Engines

P1631 Theft Deterrent systom

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Old 07-29-2013, 09:15 PM
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Default P1631 Theft Deterrent systom

I hook up a snap on scan tool to my 02 lb7 which is a no start it has a "P1631 Theft Deterrent Systom" and a P0380 glow plugs. will ether on of them have anything to do with the no start? I thought it was just bad injectors but could it be the sucruaty systom is crapped out?
 
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Old 08-21-2013, 08:28 PM
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any help?.......P.S i almost have the money up to buy my new injectors where should i get them from and is there a place i can send my cores first so i dont have to pay $800 core charger?
 
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Old 09-15-2013, 05:28 PM
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relearn the key in the ignition most likely security ran into it multiple times
 
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Old 09-24-2013, 05:21 PM
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I have still a no start. so tearing it down Thursday
 
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Old 09-24-2013, 09:06 PM
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did u do the relearn???
 
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Old 09-26-2013, 09:51 AM
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yes it did I have no codes now it's still not staring like no fuel before it stopped runnin it was hazing so I know the injectors are bad plus fuel In the oli so I'm tearing her down now
 




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