Yes the extra resistance would be a short to the ecm. Not a dead short to ground but a short never-less. I didn't get mine wet and I could of played with it and maybe get it working again but the thing only cost $31. Now I know it is fixed.

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2006 Black Jeep Liberty CRD Limited
K&N, Samco Hoses, Michelin 245/70-16 LTX A/T2, Fumoto F-102, V-Force Muffler, Mopar, Hitch, Trailer Wiring, Skid Plates, Slush Mats, Rear Shelf, Predator Stage 1, Transgo, ORM & CodeReader, Facet 40109 Pump
"IT'S A DIESEL THING, YOU WOULDN'T UNDERSTAND"
Certified Services Auto & Truck Repair

With the Spring time freezing rain and snow mix early in the morning of April 18th here in Michigan, I got the P1252 Code after 2 hours of driving in 31-32 freezing precipitation and snow. The front of my CRD was coated in a heavy layer ice and slush.

Has anyone looked into a way of protect the sensor connections from moisture intrusion?

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FuzzyJ KJ
CRD Dk Khaki

How about using dielectric grease on the connections and the the wires around the connector prior to soaking the engine?

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2006 Liberty Limited CRD, Deep Beryl Green, Yeti tune, Arp studs, new cams, rockers, lifters, TB. "Green Monster"
2005 Liberty Sport CRD, Deep Beryl Green, GDE Hot Tune, ARP studs. "Rocket"
1982 Fiat 124 Spider Convertible. "Fiona"

Recently I'd have this P1252 code. Yesterday I sort of dismantled the solenoid vacuum pump and put it together again. Today I went for a ride and no more CEL ! Problem seems to be fixed
Should I order a new solenoid vacuum pump anyway???

Good luck. I tried that too. It lasted about two days. I went to the wreckers and grabbed one fro free! It's been about a year now. I no longer wash under the hood.
I believe this solenoid controls the turbo boost. I wouldn't mess with removing it.

John

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2005 Liberty 2.8CRD
Eco Tune and Love It

Nothing wrong with an occasional wash/degrease under the hood but you need to 1) do it on a slightly warm engine when degreaser is applied; 2) use a light hose spray to rinse not blast the degreaser off; and 3) immediately crank up and drive until you reach full operating temp. Should prevent any water induced electrical problems although that dielectric grease is a good idea.

If you mean the solenoid on the black vacuum "tower" behind the air filter box it controls the storage of vacuum in the tower and operation of the turbo's variable vanes. The solenoid can fail and throw a code, I'm not where I can check which one right now, but there is a bypass posted, with pics, that can be used to check the solenoid. I doubt the tower and vacuum pump on the turbo fail often if ever.

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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