Having a lot of problems, antifreeze leaking, codes are going off.wtf

You need to be more specific:
1. roughly where is the antifreeze leaking and how much
2. what codes?
3. P0299 is commonly associated with a turbo vacuum supply problem so do you lack boost and/or do you have lots of black smoke on acceleration?

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Sold to LOST member my 05 Ltd, GDE Stg II turbo + TCM tune, SunCoast TC w. Transgo kit, Steiger window regulators, Samcos, Fumoto valve, 2nd gen filter head with Lub. Spec. bleeder, Hayden clutch & 11 blade fan, inverted spare, P-1 battery, BF Goodrich Long Trail TAs, Etecno1 glow plugs, timing belt at 50K miles/8 yrs