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Duramax Second Generation: 2004.5-2005 (LLY) Discuss the second generation (2004.5-2005 LLY) of the 6.6L Duramax diesel engine & associated components. 2006 LLY engine discussion belongs in Third Generation forum due to the differences of the 2006 LLY and the 2004.5-2005 LLY. Engine related discussion ONLY.

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Old 01-18-2011, 09:58 AM   #1 (permalink)
familywagon
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Need help with Vane Position

I need to find out how my vane positioning is supposed to work. i just installed a new turbo with new sensor an soelonid and am not sure if it is functioning properly. at idle it is at 27%. Cold light accel and cruise is about 95% whwn it warms up it is at 50% to 70% and full throttle is about 30%. is this normal? boost on my Edge reads 22psi at full throttle but i know it is not accurate, and i will be putting in a pillar guage soon.

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Old 01-18-2011, 08:10 PM   #2 (permalink)
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Bump for help please

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Old 01-19-2011, 11:05 AM   #3 (permalink)
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I don't know what the rate table should look like but I do know that when replaced it is supposed to be recalibrated or "relearned". So, it probably isn't working as it should.

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Old 01-19-2011, 02:49 PM   #4 (permalink)
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Ok, this is how a dealer does a relearn... anyone can. It does not require a tech 2. It is an auto functon in the ecm. Put in park or neutral. Ac off. With coolant at 162 or higher... idle for atleast 60 sec and do not touch the throttle. With these conditions met... idle for 60 sec then turn off ign off for atleast 30 sec . Relearn is complete if next ignition Cycle no CEL. Hope that clarifies the mysterious relearn.
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Old 01-20-2011, 10:05 AM   #5 (permalink)
latigo1
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heck yeh, I thought it required access to the ecm via a programer of some sort.

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Old 01-20-2011, 10:40 AM   #6 (permalink)
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me too. i have an inside guy who cannot be named who got me the how to off of a GM tech site. hope that saves some people a few $$. Now i just need to talk to edge to see what theier Vane position is on thier tunes
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