Need some help guys, have a 2005 gmc 4x4 auto, lly 150k threw a code a couple weeks back po0046 turbo vane position sensor i believe it was. havnt noticed any significant loss of power or noise issues. hooked up mechanics software and when demanding turbo vane position sensor it would only go from 0-85%. pulled the sensor on top of turbo hooked scan back up and was able to Manuely push the plunger from 0- 100%. so figured it was a problem with the vane position (soliniod) left side of turbo. replaced that today with a new garret part and after 4-5 start ups cel came on again po0046???? thing is giving me a headache and running out of money fast . what do you guys think? is it something as simple as the new sensor needs to be re learned? im not a mechanic and i hate electronics above all lol so any help is greatly appreciated? thanks in advance kyle.
LLY: Need some help! Turbo vane position valve soliniod
- Thread starter Kjacobs28
- Start date
If the sensor is reading correctly, and the position controller is good, then the vanes are probably sticking.
Since the vane position sensor seems to read accurately when manually pushing it is would say it's good.
And since you changed the controller it's highly unlikely that it's bad.
So I would do a vane position relearn just to rule that out as a possibility.
But it's more then like likey a mechanical issue in the vanes, or the ring that controls them. Usually carbon buildup and corrosion cause them stick and hang up.
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Since the vane position sensor seems to read accurately when manually pushing it is would say it's good.
And since you changed the controller it's highly unlikely that it's bad.
So I would do a vane position relearn just to rule that out as a possibility.
But it's more then like likey a mechanical issue in the vanes, or the ring that controls them. Usually carbon buildup and corrosion cause them stick and hang up.
Sent from my SM-N920V using Tapatalk