P0299

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kosanow1

New Member
Dec 17, 2020
3
1
3
Wyoming
Truck Year
2016
My 2016 JGC started throwing the P0299 code (under boost). It's been doing this for a couple months. I can clear the codes and in a couple key cycles it will throw this code again. I've been trying a few things and haven't had much luck. Pressure checked and couldn't hear any leaks. New MAP and MASS sensor. New fuel filters. I heard that there may be a TSB on this. I was told it said, to check the O rings on the intercooler hoses and check the O2 sensors. I have looked for this TSB and can't find it. I'm thinking it may be more of a help section for the tech at the dealership. I've checked all the normal sites for TSB. Does anyone have any other sites that I could go and look at. Or does anyone have this TSB.