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Revhead Kev Profile
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Date Registered: 10-2006
Location: Mona Vale, Sydney, AUSTRALIA
TOTAL POSTS: 6004
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Re: Particulate filter error resulting in MIL light


Just wondering guys, if driving around town at a constant speed in a lower gear might simulate the elevated country driving speed to the extent of allowing the DPF regen cycle to kick in ?

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Kev X450(c) T30 Guru
03 Titanium Ti T30 Series 1 **MODIFIED**
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8/Apr/2009, 5:24 pm Link to this post Send Email PM   Send Private Message Blog
 
dronus Profile
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Date Registered: 08-2008
Location: Adelaide
TOTAL POSTS: 541
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Re: Particulate filter error resulting in MIL light


Hmm it could be the fuel but im only using BP also. I didnt have any problems on the recent trip to VIC. Just about to hit 20,000km.

Kev: I asked the same question to the Service guy - he mentioned that one of the criterias that the ECU polls is speed so im not sure if keeping the revs up witht he speed down would help?

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Current - GU Patrol
Old - '08 T31 Platinum TL Diesel Manual - Bells and whistles.
Older - '04 T30 Ti-L Auto
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15/Apr/2009, 3:07 pm Link to this post Send Email PM   Send Private Message MSN
 
jalalski Profile
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Date Registered: 02-2004
Location: SUTHERLAND, SYDNEY
TOTAL POSTS: 29094
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Re: Particulate filter error resulting in MIL light


Hi Guys,

I had a chat to Nissan Rockdale about this problem with the diesel and the DPF regeneration and they told me that they're getting a lot of cases where the DPF re-generation process is not working correctly but in all cases it was caused by the lack of highway driving or driving the diesel within the city in start-stop conditions.

Qantas had 3 T31s with exactly the same problem and they were only being driven between the souther suburbs to the airport with no highway driving at all.

Nissan fixed 2 of them under warranty but then refused to do the 3rd one as it being considered as "driver's fault"

The Navara D40 experienced the same problem if not driven at high speed every now and then.

Makes you wonder if the choice of diesel is practical for city type of driving if that is the only type of driving you gonna do.

Last edited by jalalski, 17/Apr/2009, 7:05 am


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17/Apr/2009, 7:04 am Link to this post Send Private Message MSN Blog
 
popeclement Profile
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Date Registered: 07-2008
Location: Perth, WA
TOTAL POSTS: 476
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Re: Particulate filter error resulting in MIL light


Interesting that the Germans are introducing the next generation of diesels with even lower emissions and achieving this with the injection of special fluid into the DPF to chemically reduce the emissions.

I think we are in an inbetween phase of Euro compliance with the current setup and will have to live with it by ensuring weekly 100km/hr 15minute minimum runs, if stop-start cycles are frequent.

I am sure though that low sulphur diesel is also necessary which is why I am suggesting the BP Ultimate blend.

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X-916, VW Golf 90TSi manual, limestone grey, no extras
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18/Apr/2009, 8:27 pm Link to this post Send Email PM   Send Private Message
 
Jaali Profile
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Date Registered: 04-2009
TOTAL POSTS: 6
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Re: Particulate filter error resulting in MIL light


Are there any guide line which Nissan ask to be followed or they will not honour the failure of regeneration under warranty. What if another part malfunctioning caused the problem? Does the DPF need cleaning after any certain time or never?
Thanks guys quiet nervous about this issue.

My cousin has a Peugeot 407 with DPF done 60000ks, city kms not a problem. runs like a dream. Service interval 20000km's or one year. Same with Renault Kleos same engine and transmission as Xtrail but service interval of 15000Kms or one year? Why the difference?

Cheers.
23/Apr/2009, 9:34 pm Link to this post Send Email PM   Send Private Message Blog
 
dronus Profile
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Date Registered: 08-2008
Location: Adelaide
TOTAL POSTS: 541
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Re: Particulate filter error resulting in MIL light


I just had my 20,000km service done and a clean bill of health.
I have started to include some weekly highway driving now which is probably helping out heaps, that and the long drive over to Victoria probably cleaned a few things out.

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Current - GU Patrol
Old - '08 T31 Platinum TL Diesel Manual - Bells and whistles.
Older - '04 T30 Ti-L Auto
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24/Apr/2009, 1:54 pm Link to this post Send Email PM   Send Private Message MSN
 
Jaali Profile
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Date Registered: 04-2009
TOTAL POSTS: 6
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Re: Particulate filter error resulting in MIL light


Hi Again,
           Wrote an email to Nissan asking the same question. Customer service number is useless as they tell you to contact dealers for every thing. They were kind enough to give me an email address. But honestly it does not put too much confidence in my mind. But never the less I read the reviews here and that tells me that things may not be that bad after all. Will let the forum know when Nissan responds. By the way can anyone provide a cost list for first say four services please?
Cheers.
24/Apr/2009, 9:06 pm Link to this post Send Email PM   Send Private Message Blog
 
jalalski Profile
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Date Registered: 02-2004
Location: SUTHERLAND, SYDNEY
TOTAL POSTS: 29094
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Re: Particulate filter error resulting in MIL light


quote:

Jaali wrote:
By the way can anyone provide a cost list for first say four services please?



That is a separate topic covered HERE



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24/Apr/2009, 9:10 pm Link to this post Send Private Message MSN Blog
 
Apis1 Profile
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Date Registered: 02-2009
TOTAL POSTS: 29
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Re: Particulate filter error resulting in MIL light


Went for a familar trip up the freeway after approx 2500 km of town stop start work, and the motor was slightly sluggish! On the way back the wife drove and WITH OUT prompting said the motor felt less responsive! This trip is about 25kms in length and appears not enough to complete regen clean. The next week we went to Marion Bay (about 350 kms) and it was not until 150/200 kms (at 110 kph) was done that the motor started to 'spin' like I remember. On the way back it was back to normal. I would love Nissan to provide 'Particulate filter status' feedback, via the instrument panel. For example, when you start up among the other details already provided, give a 'percentage particulate' so you could plan some longer drives which could assist in regen. When this longer trip occurred the percentage would reduce etc. I beleive the EMU would be calculating these figures anyway so the driver could be made aware of the filter status. This would also allow usage of some diesel that I would not normally use. Its all about handing useful infomation to the user. If Nissan are going to use line 'not correct use' therefore not covered under warranty they better look at a software update giving this information to the user! If they dont then Nissan will be AT FAULT not the user. PS We have not seen the MIL light on YET.

Manual DCI 10,000kms 7.3kmpl average

Last edited by Apis1, 26/Apr/2009, 10:38 pm


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T31 Diesel manual, Bash Plate, Tow bar, Nudge, Bumper protectors, Tint, Roof racks, Rubbermats, Provented
26/Apr/2009, 10:36 pm Link to this post Send Email PM   Send Private Message
 
dronus Profile
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Date Registered: 08-2008
Location: Adelaide
TOTAL POSTS: 541
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Re: Particulate filter error resulting in MIL light


I was thinking exactly the same thing this morning when my Dpf light came on AGAIN just as I got off the expressway. I was quite nervous as I still had to traverse the whole of south road in peak hour with no chance of getting above 60kmph.

I made it out the other side and got onto port Wakefield road where it regenned after 5-10 mins at 90kmph.

Weirdly I have just returned from that long drive to VIC and have only been to work for a week.

Here is a picture of the dreaded light of death.. Notice my higher than normal fuel consupmtion.

Image

I have asked Nissan to log a TechLine job to see if there is a way to find out what the status of the DPF is. There might be a software enhancement they could provide to flash the light or provide feedback in the fuel consumption / trip meter segment before it gets too bad, or something.. Ill post back when i hear from them.

*Edit* Adding this post here as noone else has posted in the thread yet, hope that is ok.

Just spoke with Nissan. While there is no facility within the existing LCD or LED displays to show the current status of the DPF i can confirm that the ECU does report values to CONSULT2 that indicate the current status of DPF regeneration. It would be very interesting to see if any generic ECU readers (like the scan gauge) can decipher the values so that we can read them 'on the fly'.

The numbers given from the ECU are not as simple as "i am 32% blocked" or " i am 59% clear" but it gives an indication of the pressure or air movement around the DPF sensors which the ECU aggregates into a value. If the value is X + A then it starts the regeneration process if all the other requirements are met. If it is X + B then it turns the light on, if it is X + C then the engine MIL light comes on. Consult can read these values when it does its scan at the workshop and convert it into a meaningful number which is reported in the exhaust section of the report.

Consult systems are $30k+ so they might be out of reach from the normal punter..

We agreed that it would be nice to have, and who knows it might come in future versions of the software that comes with the car.

If only i had a Scangauge 2 .....

Last edited by jalalski, 27/Apr/2009, 10:10 pm


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Current - GU Patrol
Old - '08 T31 Platinum TL Diesel Manual - Bells and whistles.
Older - '04 T30 Ti-L Auto
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27/Apr/2009, 11:37 am Link to this post Send Email PM   Send Private Message MSN
 


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