Did a quick search but did not find any prior posts. I had several codes, replaced the airbox to turbo hose and now I have P1252, references a vaccum high. Any place or common thing to check? I retraced my steps couldn't find any unplugged sensors or broken wires.

Thanks

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2005 liberty CRD just bought-black
95 grand cheroke limited-retired to the woods
97 ram cummins

Either one of your two plugs on your air box is unplugged (unplug and firmly re-plug them in) or your ASD relay has shorted out.

Most likely.

Pg. 3843 - 3848 in the Service Manual.

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Silver 2006 KJ 2.8L CRD Limited:
GDE ECO Tune / Fumoto Valve / E-Tecno GX3123 7v Glow Plugs / 2nd Gen Fuel Head / Mishimoto RED Hoses / Rockers/Lifters @ 114k / Hayden FC + 11 Blade Nylon / Sears P1 Battery / Transgo 45RFE-HD2 Reprogramming Kit / Timken Front Bearings

Thanks, I'll check that out

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2005 liberty CRD just bought-black
95 grand cheroke limited-retired to the woods
97 ram cummins

Will this cause any power loss? Seems like it shifts out of o/d a lot more.
Haven't had time to work on it , busy at work and odd schedules,...fun fun

Driving something else, gonna fix it on my time off .

Thanks

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2005 liberty CRD just bought-black
95 grand cheroke limited-retired to the woods
97 ram cummins

Oh yes that can definitely cause a power loss. It's P1252-VACUUM RESERVOIR SOLENOID SHORT CIRCUIT per the diagnostic codes in the 06 FSM (not included in the 05 FSM). You probably need a new boost pressure solenoid which is likely PN 4606226AC for about $45 although it's a common solenoid so alternatives should exist. You can bypass the solenoid (see viewtopic.php?f=5&t=70602&p=757348&hilit=boost+solenoid#p757348) which should give you the power back and confirm the issue. Note the comment in that post regarding allowing a few seconds for vacuum to build before "asking" the turbo to perform.

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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

Vacuum solenoid from dodge dealership, 42$ and after a bit of driving light is out! Can't say thanks enough for the help! I switched the vaccum hoses and confirmed before before I ordered it, proving yet again how great lost jeeps is! Really hope one day to actually return some of the great help I received Here in a short time.

Just outstanding!!!!

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2005 liberty CRD just bought-black
95 grand cheroke limited-retired to the woods
97 ram cummins