JKU CRD Power Loss, CEL & New Turbo hoses - Assistance please

[HerJeep]

About 3 days ago my 2011 JKU CRD auto had power loss after driving home on general mall duties. Was a 38 degree day so thought it might have been the auto overheating and going into protection mode. Next morning drove it and same issue, revved real slow up to approx. 3,000rpm and then just held those revs with pedal flat to the floor.

Could not hear turbo blowing off so figured must be turbo hose split so bought some Samco hoses and replaced them tonight. Still no change. Check engine light is still on. Do i need to clear the check engine light for the ECU to come back out of limp mode? I have an OBDII dongle due in the post for comms to iPhone so can clear it with this i am told?

If it is the check engine light, please advise, otherwise what else could it be? MAP sensor faulty? Something more sinister like turbo itself?

[chris0375]

Are you sure it's not losing boost elsewhere? Hole in intercooler? Clean maf and map but if it happened quickly it's unlikely that being dirty is an issue. I would be getting the obd dongle and checking boost as the first easy to check thing.

[HerJeep]

I had thoughts of the possibility that one of the other really short hoses was split but I checked them & both okay. Annoying thing is I paid extra for a sydney based dongle & when I need it in a hurry guy is not answering for a tracking no. Just really love to know if limp mode/cel for certajn faults will stay in this limp mode until formally cleared. I have had cel light only type faults self clear in the past (e.g when experimenting with disconnecting MAF). Thinking of driving across to ATV to see if they can pull some codes. Driving me mad. Miss my power, lol.

[HerJeep]

Ran the OBDII & got following:
P0401
P1301
P0225
P3F24
C23AA
B2AAA
Got the following Pending Codes (whatever that means in the DashCommand app)
P253F
P2463
Reset all codes & went for drive, following code came back up again & again after resetting each time
P2463
I read this is DPF Soot accumulation. I read in the manual that P0401 (EGR flow insufficient detected), that this code will disable EGR & DPF regen. Is it possible the DPF is clogged. How do you force regen the dpf? Long drive on freeway?

[chris0375]

A long hot drive will help. Up Hill and with a trailer is good too. Do you normally drive it around town a lot? Much freeway driving?Did you check it is getting boost?

[Hayesio]

No, you have nothing wrong with your turbocharging system, its just limp mode prevents it coming on boost.

All you codes are here: https://s3.amazonaws.com/jeepwranglerjk2010/index.html (about halfway down under "engine"). P codes are powertrain codes.

Sounds like it might be a clogged DPF.

[HerJeep]

Firstly, thanks @chris0375 & @hayesio for the fantastic help. Love the tech from this forum. I was flicking back and forth between sites today looking up codes.

So she was getting around 130kpa boost (approx. 18psi) which is short of the 22psi i understand it runs at. Vehicle does a lot of short running as its primarily her daily drive. It is no doubt a clogged DPF the more i look into it. I just hope i can save it.

Have just put some Liqui Moly DPF Anti-Clog and gunna take her for a big highway run tonight to see what happens. Will then try and reset it again in the morning and report back.