Go Back   The Navara Forum > D22 > D22 Engine

Reply
 
Thread Tools Display Modes

  #21  
Old 27-12-2014, 09:21 AM
Rumpig's Avatar
Rumpig Rumpig is offline
Advanced Member
 
Join Date: Aug 2009
Location: Darwin
Posts: 1,526
Garage
Default

To know what the maps are it helps to read the d22 manual so you know how things work, things like the description of the egr and what the MAP range is give you an idea of what the axis may be. Boost pressure is in mbar, the throttle is volts, injection quantity is mm3, temperature is in kelvin. There's plenty of maps I don't know but there probably not ones I need to change so it's not stopping me from trying different things, it's all about making one change at a time and then testing it.
Attached Thumbnails
Click image for larger version

Name:	boost sensor.JPG
Views:	258
Size:	164.8 KB
ID:	19133   Click image for larger version

Name:	egr desciption.JPG
Views:	219
Size:	195.2 KB
ID:	19134  
__________________
"A little information is a dangerous thing"
Reply With Quote
Sponsored Links

  #22  
Old 29-12-2014, 07:24 AM
Rumpig's Avatar
Rumpig Rumpig is offline
Advanced Member
 
Join Date: Aug 2009
Location: Darwin
Posts: 1,526
Garage
Default

To make things a bit easier you can drag this file into winols with the bin already open and it will locate all the maps for you, including all my made up names and the axis data. From there you can start on remapping. https://www.dropbox.com/s/p745sh2p2g...0zd30.zip?dl=0
__________________
"A little information is a dangerous thing"
Reply With Quote

  #23  
Old 29-12-2014, 09:02 AM
Rumpig's Avatar
Rumpig Rumpig is offline
Advanced Member
 
Join Date: Aug 2009
Location: Darwin
Posts: 1,526
Garage
Default

The folder in this link has some basic guides on remapping from ecuconnections. https://www.dropbox.com/sh/6hw29akuf...Sjgr25jda?dl=0 It's 154 mb
__________________
"A little information is a dangerous thing"

Last edited by Rumpig; 30-12-2014 at 05:44 AM. Reason: added size
Reply With Quote

  #24  
Old 01-01-2015, 10:29 AM
Rumpig's Avatar
Rumpig Rumpig is offline
Advanced Member
 
Join Date: Aug 2009
Location: Darwin
Posts: 1,526
Garage
Default

I haven't being posting much because I assume anyone interested has got a copy of winols and is learning how to use it. It does take a while to get the hang of it, so if you've got any questions, fire away, i'll do my best to answer them.
I've got rid of the smoke down low by changing the drivers wish but still have the fuel cut once I go past 18 psi, it's starting to give me the shits but without an instruction manual it's just trial and error.
__________________
"A little information is a dangerous thing"
Reply With Quote

  #25  
Old 01-01-2015, 11:58 AM
Shorty4655's Avatar
Shorty4655 Shorty4655 is offline
Senior Member
 
Join Date: Aug 2013
Location: Hervey Bay
Posts: 871
My Mood:
Garage
Default

I remeber posts about the d22 zd30 engine going into limp mode when boost is pushed above 18psi and no one could work out why, I think most peoples concensus was it was a safety feature to stop the engine ever over boosting. Is this the fuel cut past 18 psi you speak of?

I have read over all the info and first I think ill need to buy an ecu and see of I can find a local guy to socket it. I know a local guy that does wfi dyno tuning and it a pc wizard, so he is my best bet. Then I may look at getting some chips and a reader/writer. Ideally though rumpig id rather you work it out and then I could buy the written chips off you for a price of your choosing, assuning you figure out how to make the zd30 safely more responsive down low and/or across the board.
Reply With Quote

  #26  
Old 01-01-2015, 02:43 PM
Rumpig's Avatar
Rumpig Rumpig is offline
Advanced Member
 
Join Date: Aug 2009
Location: Darwin
Posts: 1,526
Garage
Default

Hi Shorty,
Your right, it is overboost protection and most ecus have a Singe Value Boost Limiter but not all of them. which means it must be a map. There's quite a few 2D and 3D boost maps so I just have to keep working thru them as there's bugger all info on our car to guide me.
I realise not everyone will enjoy the technical aspect of remapping so I will be offering to burn a set of chips for anyone that doesn't want to buy a chip burner, only to use it once, they'll just need to get an ecu socketed themselves. I've found the best gains are as easy as turning off the egr and modifying the drivers wish, I just need someone with a stock engine with EGT and boost gauges to be a guinea pig as my car is far from stock and wouldn't be a good test bed.
__________________
"A little information is a dangerous thing"
Reply With Quote

  #27  
Old 01-01-2015, 03:31 PM
dilmah's Avatar
dilmah dilmah is offline
Advanced Member
 
Join Date: Sep 2011
Location: Perth
Posts: 1,268
My Mood:
Garage
Default

Have you worked out how to remove the torque limiters in the main file sequence? Ive been told this really opens up TD engines. The way it works: you are in 2nd gear and boost has just come on, you are calling for 80 - 90% of WOT (wide open throttle), the ECU will limit the amount of fuel to protect the engine. It is gear, throttle and rpm dependant
__________________
A fine example of Japanese Engineering
Reply With Quote

  #28  
Old 01-01-2015, 10:33 PM
Shorty4655's Avatar
Shorty4655 Shorty4655 is offline
Senior Member
 
Join Date: Aug 2013
Location: Hervey Bay
Posts: 871
My Mood:
Garage
Default

How much are the chip reader writers to buy? I can try and hit this efi tuning bloke up and see if he has any ideas for the boost limiting. Would it help contacting nissan technical? Or probs get some muppet who knows nothong
Reply With Quote

  #29  
Old 01-01-2015, 10:45 PM
Shorty4655's Avatar
Shorty4655 Shorty4655 is offline
Senior Member
 
Join Date: Aug 2013
Location: Hervey Bay
Posts: 871
My Mood:
Garage
Default

And trying to find someone with a stock d22 with those gauges is a tall order.
Reply With Quote

  #30  
Old 02-01-2015, 05:36 AM
Rumpig's Avatar
Rumpig Rumpig is offline
Advanced Member
 
Join Date: Aug 2009
Location: Darwin
Posts: 1,526
Garage
Default

Quote:
Originally Posted by dilmah View Post
Have you worked out how to remove the torque limiters in the main file sequence? Ive been told this really opens up TD engines. The way it works: you are in 2nd gear and boost has just come on, you are calling for 80 - 90% of WOT (wide open throttle), the ECU will limit the amount of fuel to protect the engine. It is gear, throttle and rpm dependant
The ZD30 ecu seems pretty simple (as far as ecus go) and doesn't seem to have any gear limiters or a speed limiter. Most of the euro cars torque limiters are atmospheric pressure verses rpm, but I think ours might use requested injection quantity as a proxy for engine load, verses rpm- not sure yet. There's plenty of 2D limiters as well.
Attached Thumbnails
Click image for larger version

Name:	main tourqe limiter.JPG
Views:	191
Size:	93.4 KB
ID:	19204  
__________________
"A little information is a dangerous thing"
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 03:28 AM.



Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2018, vBulletin Solutions, Inc.
| Home | Register | FAQ | Members List | Calendar | Today's Posts | Search | New Posts |