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boyo0704 Profile
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Date Registered: 09-2013
TOTAL POSTS: 14
Re: EGR Valve Cleaning & EGR Related MIL Error Code


Hi All,

I just wanted to share with you all my recent experience with the egr valve blocking up.

Sometime last week the engine malfunction light came on for the first time since owning the car, and of course I had no idea what was causing it. So i called my local nissan dealer who said they would have to run the diagnostic check. I took it to them for the fee of $88 and they told me it was the egr valve/system blocked. They qouted me $1250 to replace the whole system!! I laughed at them down the phone and picked the car up and did some research. A massive thanks to this thread I followed the how to guide and took it apart guess what........the valve was caked in soot. Wasn't 100% sure if the valve was operating or not but if it was no air was getting through. I gave it a good clean and put it back together and the car seems to have a little bit more power. Its only been 2 days and the light hasn't come back on but hopefully it will do the trick fir a while.

The job is a little time comsuming and some of the bolts were a bit difficult to get at but well worth saving me the $1250 that the robbing gits at nissan were qouting me.

So again a big thank you to this forum/thread again. It has been a great help.

Just one thing, i seem to be geting a lot of oil on my air filter and i read somewhere on here that it could be related. my question is how? when i got the diagnostic check i asked them if the ECU was at the latest software and they said yes. Any ideas? Now that i've cleaned the egr valve will the oil splash on th air filter stop?

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boyo0704
Nissan X Trail T31 TL DCi 6SP 2010 Model - Precision Grey
Brissie
I'm new to X Trails!!
1/Apr/2014, 9:01 am Link to this post Send Email PM   Send Private Message Blog
 
Toddyh03 Profile
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Date Registered: 08-2011
Location: Lalor Park, NSW
TOTAL POSTS: 1663
Re: EGR Valve Cleaning & EGR Related MIL Error Code


Glad you found it helpful. You will probably find that the entire intake manifold is caked with sludge. You will need to clean this at some point. It's a pain to get to around 2-3 of the 8 bolts holding the intake manifold to the engine.

As for oil on the air filter, you want this thread. To summarise for you, the easiest fix is to install a provent or another oil/air separator. There is a really good install guide here.

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Toddyh X-2048 (c)
New: Challenger
Old: 2010 T31 Diesel modified
My XTrail
1/Apr/2014, 9:51 am Link to this post Send Email PM   Send Private Message Blog
 
boyo0704 Profile
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Date Registered: 09-2013
TOTAL POSTS: 14
Re: EGR Valve Cleaning & EGR Related MIL Error Code


yeah i did clean as much of the intake manifold as i could while it was on the engine so hopefully will keep me going for a while, and yes some of the bolts looked a nighmare to get too.
After seeing other people's air filter pictures it looks like mine in very minimal. I think i will just keep an eye on it for now.

Cheers

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boyo0704
Nissan X Trail T31 TL DCi 6SP 2010 Model - Precision Grey
Brissie
I'm new to X Trails!!
2/Apr/2014, 11:43 am Link to this post Send Email PM   Send Private Message Blog
 
popeclement Profile
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Date Registered: 07-2008
Location: Perth, WA
TOTAL POSTS: 476
Re: EGR Valve Cleaning & EGR Related MIL Error Code


Out of interest what was the mileage when the MIL came on?

Have a read too of oil into the charge air cooler (intercooler) that has been posted.

John

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X-916, VW Golf 90TSi manual, limestone grey, no extras
2008 TL dc i, manual, twilight; full set bash plates, jaos strut bar
- traded
6/Apr/2014, 10:34 am Link to this post Send Email PM   Send Private Message
 
konazz Profile
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Date Registered: 08-2012
Location: Canberra, ACT
TOTAL POSTS: 479
Re:


I really have to get around to cleaning out my EGR. I've only had 1 re-gen (could feel it - after 2 days of heavy 4WD'ing) and never a DPF light. But still, might be nice to see the condition of the EGR after 80,000kms

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Michael K
2012 X-Trail Series IV Diesel TS
Member X-2600 (C)
Mods: Pedders Lift Kit, Bash Plates, 16" X-trail Steel Rims, 235/70/16 A/T Tyres, Heavy Duty shock absorbers
6/Apr/2014, 8:32 pm Link to this post Send Email PM   Send Private Message Blog
 
MarcoXtrailT31 Profile
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Date Registered: 01-2013
TOTAL POSTS: 82
Re:


My MIL came on yesterday (17/04/14). I got RACQ out and they plugged the car into the OBD2 and got the EGR blockage error (think it was p0844 iirc). Anyway to cut a long story short, I whipped off the EGR (which was incredibly oily/dirty/sooted etc) and gave it a real good clean. I put the whole thing back together and was going to take the xtrail into Nissan to remove the MIL from the dash (after trying X amount of times trying to get the car to go into the manual diagnostics area using the wait 3 secs/5depress accel etc etc routine). But being public holiday today I needed to drive the car on a 300km round trip. After getting in the car after doing half the trip the MIL has gone out on its own?

My question is - is the ECU smart enough to know once the error has been rectified and extinguishes the MIL automatically - as it seems in my case it has????

cheers for the help guys - and happy hols :P

Mark

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Mark - (X-2851)
Snow Storm Series V T31
2.0 Turbo Diesel DCi - 6 Spd Auto
18/Apr/2014, 8:42 pm Link to this post Send Email PM   Send Private Message Blog
 
popeclement Profile
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Date Registered: 07-2008
Location: Perth, WA
TOTAL POSTS: 476
Re: Re:


I believe it will unless its an error that is still present. I used ScanTool to plug into the OBD and manually reset the MIL. After a couple of dealer visits where they charge $80-90 for a very simple procedure, I bought one and it also helped me keep a log of the number of times I had to reset. My story is I cleaned out the EGR, intercooler etc twice and the MIL would reappear intermittently and each time the EGR clogged up.

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X-916, VW Golf 90TSi manual, limestone grey, no extras
2008 TL dc i, manual, twilight; full set bash plates, jaos strut bar
- traded
21/Apr/2014, 11:54 am Link to this post Send Email PM   Send Private Message
 
tedsmithau Profile
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Date Registered: 10-2013
TOTAL POSTS: 15
Re: MIL light


2009 Ts 50k.
My MIL came on some months ago with an egr error (read by my local garage) then went off a few days later by itself without doing anything in particular that I remember.
It has come since on about 5 times but invariably goes off the day after I fill up to three quarters full again.
The other day I just opened the fuel cap and closed it again and sure enough it was off the next time I started after it had cooled down.
I have read there is some sort of fuel tank - filler cap - MIL issue with some other cars.
Does this apply to the Diesel X-trail?

I just bought on EBay a bluetooth dongle for $13 that plugs into the ECM. Works perfectly to an Android smartphone app but not to an iPad due to Apple's bluetooth not being a proper "universal" bluetooth.
2/May/2014, 11:06 pm Link to this post Send Email PM   Send Private Message Blog
 
Amec Profile
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Date Registered: 07-2014
TOTAL POSTS: 8
Re: EGR Valve Cleaning & EGR Related MIL Error Code


I think I have a similar issue and was curious if you guys think I am on the right track to fixing it.

DPF light came on, no big deal. Just go for a blat down the highway and it goes away, only this time the MIL came on. It was due for its 80k service so we put it in.

Service done, mechanic reports 2 forced regen which did not complete, told we need a new DPF at $3500 for part alone.

DPF light has since gone out but MIL remains, a mate who used to work at Nissan took it in and his mate who still works there was not able to remove fault code.

MIL came on almost 1000km ago, thought it would have gone into limp mode by now if the DPF was that blocked.

Gave the car to same mate to drive to work as he travels for an hour each way to and from work on freeway. He has just made an ebay purchase for a scan tool thing so hoping we can remove this fault.

Cleaned the EGR yesterday and got a heap of yukkies, almost a tablespoon full out of it. Am considering taking the DPF to a company in Sydney who clean them at a cost of $750.

The car goes like a rocket with no hesitation at all. Returning 7.6 litre per hundred just now after dropping the kids off at work.

Am I on the right track? Anything else I should look at? Trying to avoid spending $3500 if I can.
13/Jul/2014, 2:28 pm Link to this post Send Email PM   Send Private Message Blog
 
Exywarrior Profile
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Date Registered: 10-2011
Location: Darwin, NT
TOTAL POSTS: 325
Re:


Amec, I think you'd certainly be better trying to get the DPF cleaned out first. You might take a look at Western Filters who claim to have some pretty whizz-bang technology to do this...
www.dpfcleaning.com.au/‎

I'd also take a closer look at your car's driving cycle because it needs to be able to get above 70kmh - without interruptions - for at least 20 minutes every few days to achieve a full DPF regeneration.

Is the MIL light error code for the DPF or the EGR valve? Two completely different problems. If you don't know this answer then it might be worth finding out as the EGR valves can generate P0488 error if not functioning correctly. My EGR valve was found to be defective from new and it was replaced with a modified version that has given me no problems in over 40,000km and an examination of it shows it is still quite clean. I drive 100km/day at 80-100km/h all the way.

Lastly - are you using the correct engine oil? The one thing that will wreck a DPF quicker than anything else is to use anything other than a fully synthetic engine oil that has "suitable for DPFs" written on it.
And I've been surprised how many mechanics don't seem to know the importance of this.

Good luck with the repair. If it comes to having to replace the DPF I'd try looking on the internet at overseas parts providers...I've certainly seen them for less than $3500.

Last edited by Exywarrior, 13/Jul/2014, 7:10 pm


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Mark T
2011 Series 4 T31 TL Auto - Twilight, factory towbar, factory mats, tinting, Cooper CS5s, cathodic protection, paint protection, yada yada...and no Provent
X-2099
13/Jul/2014, 6:54 pm Link to this post Send Email PM   Send Private Message Blog
 



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