Running lean at higher boost (was not last week) - Page 2 - Miata Turbo Forum - Boost cars, acquire cats.

Welcome to Miataturbo.net   Members
 


MEGAsquirt A place to collectively sort out this megasquirt gizmo

Reply
 
 
 
LinkBack Thread Tools
Old 05-05-2008, 04:04 PM   #21
Junior Member
Thread Starter
 
Join Date: Sep 2007
Posts: 108
Total Cats: 0
Default

Quote:
Originally Posted by Braineack View Post
it's possible you flashed the "with afm" file, which would be the only cause of this. or if sabotuer created the images incorrectly.
I was worried about that as well (at least getting it wrong on my end) but I was pretty careful to use the files that were under the noAFM link.

I don't know how to tell if his image is correct (though I assume that if it was wrong other people would have seen my issue too - are there other folk running Sabotuer's 9093 NoAFM HiRes image?).

Last edited by aseer; 05-05-2008 at 05:57 PM.
aseer is offline   Reply With Quote
Old 05-05-2008, 08:14 PM   #22
Junior Member
Thread Starter
 
Join Date: Sep 2007
Posts: 108
Total Cats: 0
Default

I have been reading and thought I would try EasyTherm on the HiRes 10g fw (just to see if anything changes). Just so I understand
  • then run EasyTherm on the s19 and move the modified s19 into a copy of my MSPNP9093 (No AFM) folder and src subfolder as described here (so I do not skip to step 4 as I did when using his image):
    http://ozmx5.com/viewtopic.php?f=4&t=13
  • move the .ini to the same project folder (top level)
  • And then run the download.bat utility in that folder (along with my .msq).

If I am wrong and there is a discussion/faq/manual that covers this feel free to point me to it and I will keep reading.
aseer is offline   Reply With Quote
Old 05-05-2008, 08:29 PM   #23
Boost Czar
iTrader: (61)
 
Braineack's Avatar
 
Join Date: May 2005
Location: Chantilly, VA
Posts: 72,900
Total Cats: 1,793
Default

well you wouldn't need his images. you'd download the 10g code. plug in the resistance values, and then create your own .s19 image to flash.
Braineack is offline   Reply With Quote
Old 05-05-2008, 10:16 PM   #24
Junior Member
Thread Starter
 
Join Date: Sep 2007
Posts: 108
Total Cats: 0
Default

Quote:
Originally Posted by Braineack View Post
well you wouldn't need his images. you'd download the 10g code. plug in the resistance values, and then create your own .s19 image to flash.
So just so I understand how this would be done: I would take his (KeithG) entire 10G src folder and copy in my .inc files from the 9093NoAFM directory and then compile using the Compile.bat utility (and then flash it). I would then not use EasyTherm at all? Is there anything else I need to do to be sure the s19 image reflects my configuration?

Is that different than taking KeithG's 10G s19 file and running Easytherm on it and putting it back into a copy of my 9093 directory and flashing?

This is the first time I have had to modify the image and I appreciate you helping me get it right.

Regards,
Dave

(before I saw your note I tried the latter method (EasyTherm) and saw a huge difference in performance at boost, but the run is relatively short and today is a bit cooler than yesterday - but it did not run lean at all up to >10psi, I stopped when I realized that I was now running way too rich and needed to tune - I also realized I needed to better understand how the image is generated to be sure I got everything correct)
Attached Thumbnails
Running lean at higher boost (was not last week)-notlean.png  
Attached Files
File Type: zip datalog200805051542.zip (129.7 KB, 17 views)
aseer is offline   Reply With Quote
Old 05-06-2008, 12:50 AM   #25
Junior Member
Thread Starter
 
Join Date: Sep 2007
Posts: 108
Total Cats: 0
Default

I took another run on the new files and I don't see anything like the prior behavior. It is cooler out but the MAT is not that different. I will go back to the original HiRes 10G files from the other thread and see if the problem comes back but right now I am not running lean at all at high boost.
Attached Thumbnails
Running lean at higher boost (was not last week)-second-run.png  
aseer is offline   Reply With Quote
Old 05-06-2008, 08:04 PM   #26
Junior Member
Thread Starter
 
Join Date: Sep 2007
Posts: 108
Total Cats: 0
Default

So I ran today as well with warmer temps (same as when I was first noticed the issue). Ran to higher boost (>11.5 psi or so) and saw no issues (does not run lean and nothing like the issues we were discussing). The only thing I did was to Easytherm the file I had been using (the one posted here for 9093NoAFM https://www.miataturbo.net/forum/showthread.php?t=17901) and then reload everything. Dunno what made the difference (I had reloaded the .msq which did not help before) but I hope the problem does not come back.

Thanks to all for taking a look and commenting.
If it holds up for a couple of days I am off to the dyno.
Attached Thumbnails
Running lean at higher boost (was not last week)-third-try.png  
aseer is offline   Reply With Quote
Old 05-06-2008, 09:35 PM   #27
Senior Member
 
Join Date: Dec 2004
Location: Brisbane, Australia
Posts: 1,272
Total Cats: 32
Default

Thanks for the PM aseer. I was running the same firmware image on my car (JRSC) without the AFM and I didn't appear to have this problem. I was careful when creating those images but there's a chance I have entered the wrong value somewhere.

I think to be safe I'll publish all the values used when running EasyTherm (along with a screenshot) for each version of the firmware, then everyone can check these against their inc files.

Cheers
timk is offline   Reply With Quote
Old 05-14-2008, 03:32 PM   #28
Junior Member
Thread Starter
 
Join Date: Sep 2007
Posts: 108
Total Cats: 0
Default the problem returns

So I had a week of good running (including a drive from Nor Cal to So Cal for dyno tuning, and back - no issues at all with it going lean). Unfortunately the problem has reoccurred and this time it is intermittent (looks just like before so I won't post the new logs unless someone is curious). Namely, I have runs where I am hitting >10psi with no issues (and the car flies after the tune) and I have a run where the car leans out at high boost just as before and then later that night the car is fine again as well as the morning. I suspect the Easytherm thing was a coincidence (namely I just got lucky ).

Unless anyone has other ideas I am going to pull the dual stage fuel system I have in now and replace it with a single high flow Walbro (stock pump plus the aux pump that came with FM package are what I have now). We'll pressure test first but since the issue is intermittent I am not sure we'll see a drop.

Thanks again for all who chimed in (and to DIYAutotune/Matt for taking a look at the logs, those guys are great).

Last edited by aseer; 05-14-2008 at 04:15 PM.
aseer is offline   Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
LucaCarMods's Boosted Dutch Miata Build! LucaCarMods Build Threads 11 02-14-2016 07:13 AM
01-05 Fab9 PNP COPs (used) FrankB Miata parts for sale/trade 6 09-30-2015 12:48 PM
Are my coils failing? viriiguy General Miata Chat 5 09-28-2015 08:39 PM
Another Alternator thread ihiryu General Miata Chat 9 09-28-2015 11:22 AM


Thread Tools

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
Trackbacks are Off
Pingbacks are Off
Refbacks are Off



All times are GMT -4. The time now is 09:05 AM.