P1434 and P1445 (engine repair and risk of dpf full)

[flugan]

Hi,

One week ago I got message engine repair and risk of dpf filter clogging.

P1445 and P1435

Normally I drive around 60 km to work and to pick/leave my daughter at school every other weekend so my car do mostly get the chance to regen.

I have an Chinese obd2 and torque pro which didnt provide me with anything interesting except for the faultcodes.

I have also tried car scanner and FAPlite which tells me that FAP is full. Should I buy the program to get more info, the problem is my obd2 keeps losing connection to faplite all the time but not to car scanner or torque pro.

If I delete the fault they return either when turning ignition on or after 100 meters of driving.

This friday me and my friend tried to clean the dpf with Wurth dpf cleaner spray straight in the dpf by removing the top sensor and then I took the car for a drive on the highway in third out of five years for 25 minutes and drove between 3500-4000 rpm but it didnt help.

My plan now as you can see on the image is that the calculated dpf distance is 0, is to reset dpf and soot if possible and hopefully will that trigger eolys pump to work again or do you believe its faulty? My thoughts is that if ECU says dpf is full it turns off the pump?

If reseting dpf and soots doesnt help and I still get fault on Eolys pump, is there any OEM number for just the pump as I have seen someone else on the forum buying just the pump on eBay.

What is the cheapest solution to reset dpf and other things in the future? Is it diagbox and do I need the full version? My car is a Citroen c4 2011, version 2 with a 1.6 hdi (NC9HP*) with vin number VF7**************[VIN obfuscated, can be read by forum staff].

Edit: I forgot to mention I added Eolys last year and it hasnt said anything about it since then.

[RichardW]

If you've cleaned it and the differential pressure is low enough, then you can just tell it the DPF has been replaced. That will clear P1445. Whether the other code clears is to be seen!

[flugan]

If you've cleaned it and the differential pressure is low enough, then you can just tell it the DPF has been replaced. That will clear P1445. Whether the other code clears is to be seen!

Thanks, Any tips for what I need to tell the system that its been replaced? Cheapest working solutions since I dont do any work myself on the car.

[RichardW]

It depends on the scan tool - and not all support this sort of function. You are looking for something along the lines of replacement parts - replacement of the particle filter.

[Huskyxantia]

When you have a spare few minutes have a look at this

[Huskyxantia]

I got an Engine repair fault last Friday, it was due to the fact I'd disconnected the turbo pipe work , i did a cambelt change and had to top up the coolant system so needed to get to the bleed nipples and these pipes are in the way , so that Engine repair fault can be generic.

If you have done the clean direct into the dpf I'd give it a double dose (did it to my car ages ago ) ones sometimes not enough so 2 will be good . Ive a Autel maxi com 880 something can't recall full name off the top of my head BUT It resets every counter on the psa cars , stop start , fluid pouch or tank , dpf and so on. Get the sensor tested to rule that out , as my 308cc sensor was playing up , I tested it changed it all ok , it now regens every 900 miles or just over sometimes, and it's quicker too. If you are lucky enough you can undo the dpf on the car depending on type the metal band around the middle allows it to be wiggled off , as long as you undo the bottom clamp and remove that out the way so the pipes are separated from each other , then you can wash with parts the large bit still on the car use a spray bottle with dpf cleaner in and spray it and wipe it out with some old rags ,Remeber eyes, use goggles there a must and a dry day plus a spare few hours to do a good job, the bottom part can be soaked in dpf solution wynns do a 5 litre can ,soak it in a vessel that's big enough to hold the bit you have removed , I'd soak I for a few hours if you have the time , then blast it with a pressure washer to clean it through. Did mine similar and when it drys pop it all back , get the scan tool ( not them cheap Chinese ones ) then tell the car its got a new dpf fitted and then add the millage for renewal using the scan or diagnostic tool , plenty of videos on that and all these issues on the YouTube channel to the video posted , he's a decent mechanic knows his stuff . Good luck it worked for me when I did mine and ive done 4 now .same way too

[frer8833]

I have same car but from 2013, and had same error codes, it even turned off automatic gearshifting mode and I could use only manual paddles.

Solution: Use Kingbolen Ediag Mini (or cheaper scanner with explicit DPF Reset function) and buy the DPF Reset function in the app for $20. Also add 125-250ML (I did 125ML first, but after I added a few days later, without refuelling, 125ML more + 20ML of C99 the car woke up like a sprinter horse) of Mecarun Eco 10000 Diesel to a half filled fuel tank. It will decoke the DPF quickly, even within a few days.

[Huskyxantia]

My 308cc , will throw up risk of block dpf when the temperature hits 30° or more , i always then check the vacuum build up in the fuel tank which is usually cured by ooeing the filler cap and having that whosh noise then after a short drive everything back to normal. Weird isn't it , and this is what I've learnt since owning the car and have done 4 times now .

[Paul-R]

Is that a whoosh of a vacuum or pressure being released?

[mickthemaverick]

That sounds like a case of blocked tank breather to me!

[Huskyxantia]

no I've cleaned it it was the first job i did the day after i got it as i did the old xsara picasso over fulled it and some went into this breather which i knew was full and you noticed it when driving soo as i cleared it everything power wise went back to normal., when my car gets to quarter tank it does it then so soon as I hit that quarter £50 diesel back in the tank ASAP.

[Huskyxantia]

Is that a whoosh of a vacuum or pressure being released?

That's a good question , now it only does this when the fuel is low so it's got to be the vacuum in the tank

[Huskyxantia]

Forgot to say everycar I've had does it even more than it's warmer weather

[Huskyxantia]

That sounds like a case of blocked tank breather to me!

Tell you what mick I'm just having lunch , after i think i will go check this as i know rain can get down this hole under the filler cap and since it was first done we have had a lot of rain in the last almost 2 yrs

[Huskyxantia]

My findings will be posted here
viewtopic.php?p=847271#p847271
As not to Jack this thread