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Hello
I have a 2007 2.2 crdi diesel that has run 206000 km.
I have had an issue with my fuel consumption and a check engine light for some time now and i hope anyone can help me because i am running out of ideas.
I got check engine light awhile ago on my Santa Fe and checked it with a obd scanner, the scanner responded with P1405.
I also sense a strange smell from the car and noticed that my fuel consumption had gone up a lot.
All this symptoms tells me that it is the regeneration process that is not going as planned.
It was so bad that my oil level raised over a 6 month periode

I thought that it was something to do with my diesel particle filter(dpf). during my fault seeking i found out that my temperature inside the dpf was constant at 127 degrees.
So i bought a new sensor (part number 39220J). I had to take out the dpf to be able to mount the new sensor due to some problems. For me the filter looked clean.

When i was test driving after i had reassembled it i got a new check engine light, this time: mode $06 and after P1405
I have never seen mode $06 before can anyone enlighten me?
And do anyone have a suggestion what to try next to get rid of P1405 so my car can regenerate again.

Gratuful for all inputs

Cheers

Jørn E
 

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Discussion Starter #2
Hi
is there anyone that have issue with the code P1405?
Im out of ideas. I will try to change the lambda sensor and check the hoses from the dpf to the differential pressure sensor.
Also got a new error code $06


Jorn
 

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is there anyone that have issue with the code P1405?
Sorry Jørn, I must have missed your original post. Have you tried using the forum search facility to find other threads relating to the trouble code? I'm sure I've already offered some advice about diagnosing this code a couple of times.

The code usually means the DPF is blocked to the point that the normal regen cycle can't clear it. If you find a garage that specialise in diesel engine diagnostics they might be able to carry out an emergency regen that could clear the filter. Failing that, you might need to replace it.

The exhaust gas temperature needs to be in the 500~600'C range to burn off the soot trapped in the filter, so the PCM injects a lot of extra fuel during the regen cycle to get the temperature up which obviously has a detrimental effect on fuel consumption. Because of the high temperatures involved a regen cycle only runs for a specific period of time (10min or so). If the filter isn't clean when the time period expires the P1405 code is logged.

Regards.
Scott.
 

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Hi
is there anyone that have issue with the code P1405?
Im out of ideas. I will try to change the lambda sensor and check the hoses from the dpf to the differential pressure sensor.
Also got a new error code $06


Jorn
Did it help? I am having P1405 as well, DPF is clean, EGR was cleaned a couple of years ago by professionals. I am out of ideas. How did you solve this?
 

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Hi i had this problem and mine ended up being a fualty temp sensor( up near turbo). I recommend finding a mechanic who will pop there expensive computer on and check that the sensors are all reading and responding normally, once i changed this sensor the p1405 never came back.
 
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