Learning View (version 0.4a 10-31-08)

Freon · **Posted:** Fri Jun 13, 2008 4:21 pm

Minus means it is starting off rich, then the ECU adjusts by removing fuel to hit 14.7:1. You're probably better off that way, so after a reflash or ECU reset you have slightly extra fuel at idle and it learns it out.

NSFW · **Joined:** Wed Nov 22, 2006 10:23 pm **Posts:** 397

Any chance this could be made to update itself every couple seconds while it runs?

I'd like to leave it on my CarPC display.

merchgod · **Joined:** Wed Mar 29, 2006 10:38 pm **Posts:** 4224

I kinda wanted to stay away from realtime updating to avoid conflicting with other apps such as Ecuflash which would be a problem if you were trying to flash and left LV open if it had the capability of constantly updating. I guess I could have the default stay the same as it does now and allow for a command line argument that would enable auto update and specify the seconds between updates. That would probably be sufficient to keep the noobs from using it that might also leave it open when flashing. I'll look into it.

Jon [in CT] · **Posted:** Wed Jun 25, 2008 5:07 pm

merchgod wrote:

I kinda wanted to stay away from realtime updating to avoid conflicting with other apps such as Ecuflash which would be a problem if you were trying to flash and left LV open if it had the capability of constantly updating.

If you're using the virtual comm port (VCP) interface to read the ECU then there's probably not a serious conflict with EcuFlash. I'm pretty sure the current EcuFlash only uses the D2XX interface and the Tactrix device driver won't allow both interfaces to be open at the same time.

merchgod · **Joined:** Wed Mar 29, 2006 10:38 pm **Posts:** 4224

Jon [in CT] wrote:

If you're using the virtual comm port (VCP) interface to read the ECU then there's probably not a serious conflict with EcuFlash. I'm pretty sure the current EcuFlash only uses the D2XX interface and the Tactrix device driver won't allow both interfaces to be open at the same time.

I'll mess with this in the future and see if it is the case.

Pandinos · **Posted:** Wed Jul 02, 2008 9:39 am

Hello,

I’m just compared the A/F Learning #1 that you guys have with mine, and mine are way to high. What can this mean?

A/F Learning #1:
0 - <5.60 5.60 - <10.00 10.00 - <50.00 50.00+
-7.67 -9.08 -13.62 -14.4

Bullwinkle1983 · **Joined:** Sat Dec 16, 2006 1:59 pm **Posts:** 143

Pandinos wrote:

Hello,

I’m just compared the A/F Learning #1 that you guys have with mine, and mine are way to high. What can this mean?

A/F Learning #1:
0 - <5.60 5.60 - <10.00 10.00 - <50.00 50.00+
-7.67 -9.08 -13.62 -14.4

It means that you need to scale your MAF.

Pandinos · **Posted:** Wed Jul 02, 2008 10:36 am

Bullwinkle1983 wrote:

Pandinos wrote:

Hello,

I’m just compared the A/F Learning #1 that you guys have with mine, and mine are way to high. What can this mean?

A/F Learning #1:
0 - <5.60 5.60 - <10.00 10.00 - <50.00 50.00+
-7.67 -9.08 -13.62 -14.4

It means that you need to scale your MAF.

I have the stock intake system, the only change is the FMIC, does the FMIC affects the maf scaling?

mickeyd2005 · **Joined:** Wed Oct 25, 2006 12:32 am **Posts:** 1778

It could mean that your fuel is substantially different than normal gasoline.

BTW, if you find anything wrong and fix it. Do NOT do a WOT log. Reset the ecu first.

Pandinos · **Posted:** Wed Jul 02, 2008 6:54 pm

I don’t think that the problem is the FUEL I use the 98fuel only, I think that it is equal to US 93Ron.
As soon as i find out what its wrong i will post here just to put a closer on the problem, thanks you all

Just another quick help, hehe.
The “50.00+ = -14.4” means that when the airflow goes above 50 the ECU reduces the fuel in 14.4% right?
That can mean two things:
1) My injector scaling is very below the real CC (can latency affect so much the A/F learning?)
2) Intact leak after the turbo, hum, maybe this is not the problem, if this its true then my correction in the 0 - <5.60 range should be positive, not negative right?

Any advices to where to start looking.

Thanks in advance

Freon · **Posted:** Wed Jul 02, 2008 9:18 pm

At idle the turbo is spinning and vacuum is created by the throttle body. Your charge pipes will leak air outwards. Take your BOV off, put a piece of tape over the hole, start the car, then poke a hole in the tape with a pencil. Feel air get pushed out.

I'd say leak, or improper injector scaling. Cleaning the MAF can't hurt. Latency will affect the lower fuel trims more and the 40+ fuel trim very little if any.

Could also be fuel pressure being too high.

mini996tt · **Joined:** Wed Oct 11, 2006 4:25 pm **Posts:** 22

Can someone tell me where the logs are saved?

NSFW · **Joined:** Wed Nov 22, 2006 10:23 pm **Posts:** 397

It does not log. It just displays a snapshot of the learned values, which you can then copy to the clipboard or save to a file.

I mostly use the 'copy' option, and then paste into a text file with some notes.

viz · **Joined:** Thu Dec 21, 2006 9:44 pm **Posts:** 11

Hers's my readings from my STI My02 (Bugeye) with stock intake, PPP sports cat and Ecutek tuned to 348bhp/332ftlbs running on 98 RON VPower from Shell, any comments ?

Attachment:

DV STI Merchgod Learning tool 5th July 2008.jpg [ 114.19 KB | Viewed 55 times ]

renew · **Joined:** Fri Jun 13, 2008 5:49 pm **Posts:** 32

first of all - thanks for the great tool. Its perfect for just looking how the map fits the car.

Here is the output of my WRX - with a little modifications of the map running 95Okt (ROZ!)

Code:

CAL ID:A8DH200Y
Description: 06 EDM Impreza WRX MT
ECU ID:4342584006

IAM,1.0000

A/F Learning #1:
0 - <5.60,5.60 - <10.00,10.00 - <40.00,40.00+
-5.10    ,-8.00        ,-4.80         ,-2.60 

FLKC Table    ,0 - <1.10,1.10 - <1.55,1.55 - <1.90,1.90 - <5.00,5.00+
0 - <2400     ,-1.75    ,-0.35       ,0.00        ,0.00        ,0.00 
2400 - <3600  ,-1.05    ,0.00        ,-1.40       ,0.00        ,0.00 
3600 - <4800  ,0.00     ,0.00        ,-2.80       ,0.00        ,0.00 
4800 - <5600  ,0.00     ,0.00        ,0.00        ,0.00        ,0.00 
5600 - <11000 ,0.00     ,0.00        ,0.00        ,0.00        ,0.00 
11000 - <12000,0.00     ,0.00        ,0.00        ,0.00        ,0.00 
12000+        ,0.00     ,0.00        ,0.00        ,0.00        ,0.00 

The A/F learning curve should be ok, I am just 1 tank after reflash/reset.

I am a bit concerned about the little knock under "partial" load. I did have this knock events also on the stock map. It hasn't affected the IAM and also wasn't any higher (i mean lower

) than -2.8. (whether on complete stock map nor on my tuned map).
Is this anything I should take a look at or is this just "normal" knock that could happen?

thank you guys, yours renew

RomRaider

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