Check engine light came on today codes read P0069 and P0299. P0069 stated that the boost pressure is not within calibrated range from the inlet air pressure. And p0299 stated that the ECM has determined that the boost pressure is lower than the expected boost pressure. I did hear the turbo winding a lot and oil coming from the turbo inlet where the samco hose meets i retightened the hose still smokes a idle and acceleration. I just recieved the green diesel engineering eco flash but did not install it till i find out what the CEL is all about. liberty has 103,500 on it with the timing belt service completed at 100,000. Any input would be appreciated thanks

Check the melted vacuum line post at viewtopic.php?f=5&t=61240 and you might want to check the function of your boost pressure solenoid.

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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

Install the tune and those problems will most likely go away. If they do not, then we can look into hardware problems. If you do not have an air leak, the underboost is related to EGR performance and will go away. The tune also opens up the tolerance a bit for P0069, so if it comes back with the tune installed, then your MAP sensor has drifted too much and would need to be replaced.

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I think I have my spare (new) Map sensor from when I threw a p0069 if yours turns out to be defective.

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05 CRD Sport Dark Kahki

RRO: Adventure Rack/Rails ** MOPAR: Skids/Renny Flares & 255/75r17 (32.1) BFG M/T on JK wheels ** ARB: Bumper/IPF lights/790/948/shocks ** GDE: TCM/Hot Tune ** ROCKLIZARD: Super Sliders/Komodo Bumper

My Build Thread
US Army Infantry

Thanks everyone, I'm gonna install the tune tomorrow and also replace the map sensor. I took it out last week to clean it and maybe I damaged it, the jeep dealership said it doesn't have a map sensor in the diesel LOL

The dealer is not a complete idiot as the MAP sensor (back top of engine under wiring harness) old # 5140331AA new # 68031593AA (alternative Bosch 0 281 002 437) is called the air temperature/boost pressure sensor in parts manual.

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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

Arengant what do you want for your MAP sensor. Thanks,Bill

$80 shipped

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05 CRD Sport Dark Kahki

RRO: Adventure Rack/Rails ** MOPAR: Skids/Renny Flares & 255/75r17 (32.1) BFG M/T on JK wheels ** ARB: Bumper/IPF lights/790/948/shocks ** GDE: TCM/Hot Tune ** ROCKLIZARD: Super Sliders/Komodo Bumper

My Build Thread
US Army Infantry

darn I didn't see your message till late yesterday and paid $155 at the jeep dealership. Thanks so much for the offer

Ouch!

Hope it helps!

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05 CRD Sport Dark Kahki

RRO: Adventure Rack/Rails ** MOPAR: Skids/Renny Flares & 255/75r17 (32.1) BFG M/T on JK wheels ** ARB: Bumper/IPF lights/790/948/shocks ** GDE: TCM/Hot Tune ** ROCKLIZARD: Super Sliders/Komodo Bumper

My Build Thread
US Army Infantry

It was a bad MAP sensor, thanks everyone for your input. I'm installing my GDE eco tune this weekend! Bill