Go Back   The Navara Forum > General Discussions > Main Forum

Reply
 
Thread Tools Display Modes

  #11  
Old 03-12-2017, 07:45 PM
Old.Tony's Avatar
Old.Tony Old.Tony is offline
Administrator
 
Join Date: Oct 2009
Location: Mid Coast Region, NSW, Australia
Posts: 14,813
My Mood:
Garage
Default

Ahh I remember that post! Isn't age a wonderful thing. Where is my mouse ... and dammit I've lost the 'any' key, if someone finds it can you mail it back to me?

Seriously, the alternative is a bit more work (the positive pressure actuator) but it should be quite responsive and better still, quite simple and effective. My turbocharger is sitting below a bit of a spaghetti field of 3mm vac hose, with bits going everywhere. I've trimmed the hoses down to a short workable length and it's working well but there's a fair bit of hosework to manage the valve, needle valve and the connection to the charge air hose. It's still a great bit of kit!
__________________

Check out the FAQs by clicking here!



"Money can't buy happiness, but it does make misery a lot easier to deal with."
Reply With Quote
Sponsored Links

  #12  
Old 04-12-2017, 02:46 AM
ericcs's Avatar
ericcs ericcs is offline
Senior Member
 
Join Date: Jan 2011
Location: birkdale brisbane
Posts: 465
Garage
Default

Quote:
Originally Posted by Old.Tony View Post
Ahh I remember that post! Isn't age a wonderful thing. Where is my mouse ... and dammit I've lost the 'any' key, if someone finds it can you mail it back to me?

Seriously, the alternative is a bit more work (the positive pressure actuator) but it should be quite responsive and better still, quite simple and effective. My turbocharger is sitting below a bit of a spaghetti field of 3mm vac hose, with bits going everywhere. I've trimmed the hoses down to a short workable length and it's working well but there's a fair bit of hosework to manage the valve, needle valve and the connection to the charge air hose. It's still a great bit of kit!
Tony, i have a fairly new BCV, just curious if it's still worth replacing it for a Tillix valve. I also tow a van, though nothing as big as yours, and a 5m boat, so i am curious if the Tillix valve gives a better power curve?
Reply With Quote

  #13  
Old 04-12-2017, 09:58 AM
Old.Tony's Avatar
Old.Tony Old.Tony is offline
Administrator
 
Join Date: Oct 2009
Location: Mid Coast Region, NSW, Australia
Posts: 14,813
My Mood:
Garage
Default

My van is only 19' and 2.5T. The 5m boat probably gets up towards 2.5T with the trailer.

I don't think you should replace the BCS just yet unless your intention is to move to the Tillix valve and put the BCS away until the Tillix valve fails. Since the Tillix valve is little more than a spring holding a valve closed, it's not going to break in a hurry. Personally I'd give the BCS another chance to fail and then be rid of the thing altogether.

I have two of these things now, you'd think I'd take the time to tear one apart and see what it is that breaks. Oh for some time!
__________________

Check out the FAQs by clicking here!



"Money can't buy happiness, but it does make misery a lot easier to deal with."
Reply With Quote

  #14  
Old 06-12-2017, 10:37 AM
Dazzza's Avatar
Dazzza Dazzza is offline
Junior Member
 
Join Date: Dec 2017
Location: Perth Australia
Posts: 6
Default

So.... car went in for diagnostics at United Fuel Injection. They acknowledged car went into limp mode at high RPM. Could they diagnose why....nope. Apparently BCS is fine and creating the right boost. However this could be periodic correct?

So car is now at a different diesel specialist who has listed a number of issues that could arise without codes being thrown.



Sent from my iPhone using Tapatalk
Reply With Quote

  #15  
Old 06-12-2017, 03:41 PM
bods's Avatar
bods bods is offline
Advanced Member
 
Join Date: Sep 2010
Location: Orelia, WA
Posts: 4,503
Default

I would expect an overboost condition to cause limp mode, especially under hard acceleration. It makes you wonder what the boost sensor is reading when you put your foot into it. Hopefully the next workshop can figure it out...

Sent from my CPH1607 using Tapatalk
Reply With Quote

  #16  
Old 06-12-2017, 08:49 PM
Old.Tony's Avatar
Old.Tony Old.Tony is offline
Administrator
 
Join Date: Oct 2009
Location: Mid Coast Region, NSW, Australia
Posts: 14,813
My Mood:
Garage
Default

Overboost can cause limp mode and if it's periodic it points straight to a failing BCS.

The problem at high RPM is that every sensor is getting near its maximum input. That means it doesn't take much to trip it up - I don't like using high RPM anyway, and high RPM diagnostics are a bit of a guessing game unless you can get good feedback from the sensors and match them up against each other.

What would be really helpful is to create a graph of the sensor output and see if any of them are going out of spec at some point. Torque can do this, slide the view to a new screen, add a display and choose 'graph'. You can also ask the Torque app to create a CSV file of the output. You can then open it in Excel and create a graph based on multiple inputs and more easily see what things are doing.

Without that information, a lot of what we're doing here is guesswork (admittedly, based on considerable experience with these vehicles across a range of members who do things differently). I'm not a high RPM driver, so I can only surmise at what it might be based on what I know about the car's operation at lower RPM.
__________________

Check out the FAQs by clicking here!



"Money can't buy happiness, but it does make misery a lot easier to deal with."
Reply With Quote

  #17  
Old 07-12-2017, 10:47 AM
Dazzza's Avatar
Dazzza Dazzza is offline
Junior Member
 
Join Date: Dec 2017
Location: Perth Australia
Posts: 6
Default

So A1 Diesel Injection were awesome!! Did a full diagnostic including battery voltage when car running, fuel map and cam sensor/crank sensor overlay graph!! My timing chain is sloppy and the graph shows the mis-alignment.
Tested BCS and no issue. So chain throwing car into limp mode.

So car has gone to Hi-Tech Cylinder Heads who rebuild Nissan engines for DVG 🤣

Full timing chain kit. New gears, double row chains top and bottom, new water pump whilst the work is being done etc...


Sent from my iPhone using Tapatalk
Reply With Quote

  #18  
Old 07-12-2017, 02:59 PM
bods's Avatar
bods bods is offline
Advanced Member
 
Join Date: Sep 2010
Location: Orelia, WA
Posts: 4,503
Default

Well there you go. Not necessarily a good result, but at least it will be fixed properly...

At least they got it before the chain let go
Reply With Quote

  #19  
Old 07-12-2017, 04:47 PM
Dazzza's Avatar
Dazzza Dazzza is offline
Junior Member
 
Join Date: Dec 2017
Location: Perth Australia
Posts: 6
Default

Quote:
Originally Posted by bods View Post
Well there you go. Not necessarily a good result, but at least it will be fixed properly...

At least they got it before the chain let go


Iím definitely thankful that it didnít snap!!

So strange that United Fuel Injection could diagnose the problem.


Sent from my iPhone using Tapatalk
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



All times are GMT +1. The time now is 10:22 AM.



Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2017, vBulletin Solutions, Inc.
| Home | Register | FAQ | Members List | Calendar | Today's Posts | Search | New Posts |