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my check engine light came on the other day iused my tuner to check it and it pull up two codes one was,p0046and the other was p1621 the truck runs great but im wanting to find out what the codes mean.:help
engine codes
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P0046 Turbo/Super Charger Boost Control Solenoid Circuit Range/Performance
p1621 Control module long term memory loss
p1621 Control module long term memory loss
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welcome to df
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thanks i notice a wire craced on my boost control the other day i wonder what the memory loss is about i did change tuners the other day
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what tuner did you go to
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triple dog crazy larry edition
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bully dog will do p1621 till you remove it
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ok ya cause of the shift on the fly deal i am getting much better fuel economy now 18+ but ive notice a little lack in acceleration prolly the boost sensor
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when you get a sec please fill out you sig so we know what you have
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i really appreciate your help and is there somewere i can find a code book for my truck?
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some people have code lists posted up but a actron from discount will tell you
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ill get on it
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hey this might help just did a quick search GM Diagnostic Trouble Code List part 1 - TheDieselGarage.com
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Thanks u really been helpful now I just gotta spend a gob of money on a sensor I just priced one nearly 400 dollars
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sorry to hear about the price on the part have luck
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try gmpartsdirect.com may be able to find it cheaper
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Gmpartsdirect.com had the sensor for 233.03 tax and shipping total is 284.30 it's not exactly cheap but it's much better than 400 at chevy 
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The part number for the turbo vein position sensor is 97603320 if anyone needs it
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