Pajero 4WD Club of Victoria Public Forum Pajero 4WD Club of Victoria Public Forum

Go Back   Pajero 4WD Club of Victoria Public Forum > Vehicles > Generation 4-1 Pajero

Generation 4-1 Pajero NS Model 2006 - 2009

Reply
 
Thread Tools Display Modes
  #1  
Old 17-04-17
camNS camNS is offline
Junior Member
 
Join Date: Apr 2017
Location: Hobart
Posts: 13
Default DPF Warning with Delete Pipe

Hi All. First time poster, but I've been benefiting from your collective knowledge for a while so thankyou.

Anyway, I've got ongoing DPF issues with my 07 NS. Timeline goes a bit like this:
- Bought vehicle around Jan 2016
- It is my Wife and I's only car, but she catches the bus to work and I work from home so it doesn't really get driven daily. A few short trips, and longer trips every weekend.
- No DPF issues until a few months ago
- Had the warning light come on a few times and go off on its own
- Eventually the warning light came on and stayed on for about 1.5 hours (of continuous highway driving) before eventually going to flashing + CEL + limp
- Local mech tried to force regen and failed (I've read here since that this is expected)
- Took it to the one and only dealer we have in Hobart who did two forced regens + oil changes before they could make it stay off
- I bought a DPF delete pipe, but the light was off and we had a trip away planned for Easter so I didn't want to risk doing anything before that.
- However, last weekend the warning light came on AGAIN. After 45 min of highway driving it went out so I took it straight home and did the pipe swap.
- All went well with the pipe swap. I've looped back the pressure pipes, plugged up the holes in the delete pipe and swapped the temp sensor over.
- Went away this weekend which involved about 2.5 hours of highway driving each way. On the way back today warning light comes on again mid cruising, then after about 1.5 hours on the highway CEL + limp. Luckily we were nearly home.


What are my options? I've read that the temp sensor has been the issue on a couple of people's cars with the delete pipe fitted? I'm hesitant to take it back to the dealer at all with the delete pipe fitted. Should they theoretically be able to diagnose a temp sensor, and clear the CEL without the DPF fitted? Or does the DPF need to go back on either way?

ta
Reply With Quote
  #2  
Old 18-04-17
Stoneman's Avatar
Stoneman Stoneman is offline
Valued Member
 
Join Date: Jul 2012
Location: Melbourne
Posts: 2,184
Default

You need a Mutt

How many k's between burns?
Sounds like temp sensors

Replace the temps sensors in the dpf with resistors (pm me and I tell you the ones you need)

If it's in limp mode it's too late and the codes will need clearing with a mut 3 first

Good luck, many a man have travelled this path and there is a lot of crap out there

Hope you don't get dragged down that path

Been years since I've had any issues with my dpf
__________________
NS Pajero Exceed. With stuff
Reply With Quote
  #3  
Old 18-04-17
Merts's Avatar
Merts Merts is offline
Valued Member
 
Join Date: Nov 2011
Location: Bendigo Vic
Posts: 1,404
Default

Sounds very much like a temp sensor issue to me too.

You are correct that taking it to a dealer with the delete pipe on will almost certainly result in them automatically blaming that for the errors.
__________________
Merts
Impulse Blue 2015 MQ Triton GLS Auto

ARB Summit front & rear bars and side steps, Carryboy canopy and rack, Safari Snorkel, VRS 9500 winch, Gecko 16x7 rims with BFG 245/75r16 KM3s, Uniden 8080s UHF, Darche 270 awning
Dobinson heavy duty suspension, Harrop rear Elocker, Supertrim Neoprene Seat Covers, Drifta drawers, MSA drop slide, dual battery system and ARB onboard compressor. National Campers Hermit.

Previously a Gunmetal 2007 NS VRX DiD Auto
Reply With Quote
  #4  
Old 18-04-17
camNS camNS is offline
Junior Member
 
Join Date: Apr 2017
Location: Hobart
Posts: 13
Default

Quote:
Originally Posted by Stoneman View Post
You need a Mutt

How many k's between burns?
Sounds like temp sensors

Replace the temps sensors in the dpf with resistors (pm me and I tell you the ones you need)

If it's in limp mode it's too late and the codes will need clearing with a mut 3 first

Good luck, many a man have travelled this path and there is a lot of crap out there

Hope you don't get dragged down that path

Been years since I've had any issues with my dpf
Thanks for the response. It was probably around 300kms between the warning light last weekend and the one this weekend. This is what it is supposed to be for the periodic burn isn't it?

Will send PM. ta

Quote:
Originally Posted by Merts View Post
Sounds very much like a temp sensor issue to me too.

You are correct that taking it to a dealer with the delete pipe on will almost certainly result in them automatically blaming that for the errors.
Thanks. Theoretically, if I were to fit the resistors then manage to convince the dealer to just reset the codes with the delete pipe fitted is this possible?

Or do I have to refit DPF, take it to dealer, try and convince them that it is most likely the temp sensor, get them to do the minimum to reset the codes, give it back to me and then I have 300km to do the resistor mod?

It doesn't help that the only dealer in Hobart is extremely busy currently and last time they couldn't fit me in for a week.
Reply With Quote
  #5  
Old 21-04-17
Stoneman's Avatar
Stoneman Stoneman is offline
Valued Member
 
Join Date: Jul 2012
Location: Melbourne
Posts: 2,184
Default

its hard to say

if you get a good dealer they should help you out

last dealer i went to years ago i got a reply, and i quote "the computer said you had one" and shrugged his shoulders......and that's all that was said.
__________________
NS Pajero Exceed. With stuff
Reply With Quote
  #6  
Old 21-04-17
Matty_P Matty_P is offline
Member
 
Join Date: May 2014
Location: Bayside Brisbane QLD
Posts: 149
Default

Similiar issues with my NS in recent weeks. Just had a service by my local guy on this forum he has done several services and very happy. A few days later DPF light came on hard for first time in over 2 years, couldn't do a highway run as it was chockers with peak hour traffic, went home then CEL light and limp mode.
Took it to the local dealer (273,000kms) they did a forced regen and redid the oil as it had been diluted, they reset the the oil dilution setting (didnt know about this but it's supposed to be done each service). They do some recall work on the airbag(changed my clockspring from china....$80 labour ...lovely)...reflash the ECU.A couple of hundred $$ later and i am on my way...

A week goes by and DPF light hard on again.....same same regen....new oil....no charge this time. They also did what they called a "DPF malfunction service" or similiar which should have been done at the previous regen....B.S???...don't know.

Go away for a week camping 1100kms later towing the SWAN outback and DPF light comes on as i pull into my street....WTF ...lucky but unlucky.....back to the dealer last Monday...this time no codes, oil is fine, did another regen no charge..
Pissing me off but the dealer has been really good no complaints there. Seriously looking at a BT50 now can't afford to not have a reliable car.......interesting this time no codes and oil level is fine. They said the DPF and sensors check out fine....
Reply With Quote
  #7  
Old 22-04-17
P4J3R0 P4J3R0 is offline
Valued Member
 
Join Date: Jun 2013
Location: Brisbane
Posts: 821
Default

Best option is to remove DPF and take to a tuner to have the ecu reprogrammed so the DPF doesn't exist and will never be a problem ever again.

Cheap skate way is, DPF delete pipe, loop pressure pipes, replace temp sensors with resistors.

I did have a small issue (because the speedo sensor was mashed when the transfer case started to self district) before I installed the resistors and had to do a regen (bought a MUTT as the dealer is an hour away). That was 40,000km ago, no dramas since.
__________________
NS Pajero, with stuff.
Reply With Quote
  #8  
Old 22-04-17
Stoneman's Avatar
Stoneman Stoneman is offline
Valued Member
 
Join Date: Jul 2012
Location: Melbourne
Posts: 2,184
Default

Quote:
Originally Posted by Slo78u View Post
Best option is to remove DPF and take to a tuner to have the ecu reprogrammed so the DPF doesn't exist and will never be a problem ever again.

Cheap skate way is, DPF delete pipe, loop pressure pipes, replace temp sensors with resistors.

I did have a small issue (because the speedo sensor was mashed when the transfer case started to self district) before I installed the resistors and had to do a regen (bought a MUTT as the dealer is an hour away). That was 40,000km ago, no dramas since.
Are you still running the resistors?
__________________
NS Pajero Exceed. With stuff
Reply With Quote
  #9  
Old 22-04-17
Stoneman's Avatar
Stoneman Stoneman is offline
Valued Member
 
Join Date: Jul 2012
Location: Melbourne
Posts: 2,184
Default



You can find the plugs on line or go to a wreckers and make them easy enough
They don't stop the burn rather just keep the ecu happy
Having a delete pipe will give better flow and drop temps making it harder for the temps to be reached
Your burns will eventually be 600 km apart regardless of driving behaviour instead of the average 300 odd
The ecu uses calculations to work out when it thinks a periodical burn will be done with it completing perfect burns every time it will slowly increase the time between burns

These are the ones I gave slo78u

I'm not sure why it's a cheap skates way
You can also have the EGR deleted from a remap also

It will also complete a forced regen with the resistors.

Testing done during a regen some time ago now seen a 200 degree drop in temps in the delete pipe using the resistors
Ecu than calculates that less fuel is needed to reach temps
Remember the fuel for the burn is pre injected so it's being wasted. (That said it's minimal)
I personally don't think you need to do a forced regen when resistors are installed but I did.

I now just have a unit that stops them all together but that's another story.
__________________
NS Pajero Exceed. With stuff
Reply With Quote
  #10  
Old 22-04-17
Ky1e's Avatar
Ky1e Ky1e is offline
Member
 
Join Date: Aug 2015
Location: Muswellbrook
Posts: 118
Default

Quote:
Originally Posted by Stoneman View Post
I now just have a unit that stops them all together but that's another story.
Which unit is this?
Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
DPF Delete Pipe ChrisV Generation 4-1 Pajero 10 23-09-17 10:59 AM
And again, DPF delete pipe Sanad Generation 4-1 Pajero 3 10-03-16 04:52 PM
DPF Delete Pipe Needed! Exceed1976 Generation 4-1 Pajero 6 19-03-15 09:32 PM
My DPF delete pipe Wrex Generation 4-1 Pajero 49 29-01-13 03:29 PM
NS DID Chip it and delete pipe pajmobil Generation 4-1 Pajero 16 12-11-12 08:51 PM


All times are GMT +10. The time now is 10:03 PM.


Powered by vBulletin® Version 3.8.9
Copyright ©2000 - 2020, vBulletin Solutions, Inc.