ECMlink First time on SD, need help on VE table

[1996dsm]

1). Any boost, vac, or exhaust leaks? no
Boost leak tested 5psi above your max boost with no leaks? yes

2). Verified mechanical timing? yes

3). Verified base timing? yes

4). Ignition system
COP or Stock Coil: stock
Wire brand and Age: ngk replaced 5/2014
Spark Plug brand, type and Gap: Ngk BPR7ES, gapped @ .021

5). Motor health (Compression Test)
Cylinder 1:
Cylinder 2:
Cylinder 3:
Cylinder 4:

6). Performed basic throttle body adjustments?
Idle Switch:
Throttle Cable: yes
TPS: yes
BISS: yes

7). Compression ratio Stock 7 bolt

8). Any known bad sensors or brittle wiring? no

9). Any DTC/CEL codes? no

10). Electrical system
Car off (not running):
Car running: 13.5

11). Base fuel pressure and injector values
Base Fuel Pressure: 43.5
Injector Size (cc/min):1150

12). Properly calibrated and configured wideband sensor
Sensor Brand: AEM
Calibration Date: 8/2013

13). Type of fuel
Type: e85
Percent of Ethanol:

14). Watched ECMlink how-to videos? yes


last night was my first time messing with SD, i thought i was doing ok.
my 3rd gear pulls from 2k to redline looked great but when i did 1/2/3 shifts I got mixed afr's.
i did mess with the ve table to try to fix this before my laptop died and ended my tuning till today.

 

[MindBlowin03]

If you can, post a 3rd gear log. Id like to see both logs and compare.

 

[1996dsm]

I will get one asap, it's currently raining here.

 

[1996dsm]

fixed my global for the fic 1150's also reset my timing tables back to stock.

 

[Seamus]

I cant see logs now. Dude I hate this stupid windows phone so bad. I never gave a shit about phones till I had a bad one. What app do I need to view logs? How can a windies phone not automatically open stuff from a windows computer? Stupid.

 

[BoostedBeaver]

I cant see logs now. Dude I hate this stupid windows phone so bad. I never gave a sh** about phones till I had a bad one. What app do I need to view logs? How can a windies phone not automatically open stuff from a windows computer? Stupid.

You need the ECMlink application to open and view logs. This is why you can not view the file. It has nothing to do with windows.

To the OP, I will take a gander at the logs when I make it to the house this afternoon. If you havn't already, post a idle log at full operating temp with the current settings.

 

[1996dsm]

Idle log with the same settings.

 

[BoostedBeaver]

To start, your VE table is too erratic. You engine is a pump when it comes to air and can not change volumetric efficiency drastically in a short span of time (one cell). There should be smooth transitions throughout the table with no sudden jumps. Here is a better explanation.

http://www.dsmtuners.com/threads/th...can-an-expert-weigh-in.488248/#post-153483137

I would suggest starting over by loading the stock VE table.

Your VE table is maxing out at 40.4 PSIA? All the tables I have seen go to 55.1PSIA. When is the last time you performed a firmware and software update? Not to sure what else could cause this.

As for your MAXocttable, richen those numbers up some until we get a handle on your AFR’s. Your seeing 1 count of knock throughout the pull and i’m sure the 13.X AFR’s are not helping.

Robert

 

[BoostedBeaver]

Just saw the idle log.

Your global should be a lot closer now. That increase in global will have you pulling air out of the VE table across the board. Its going to be easier to reload the stock VE table and restart.

ISC is from 73 to 80. It should read 30 at idle using link. You need to adjust the BISS to correct this value.

Your Combined fuel trims are negative across the board from 4 to 10%. Deadtime needs to be adjusted to correct this. Adjust this while adjusting airflowperrev.

Airflow per rev hovers around .31. Track the VE table find your idle cells and adjust these values to get airflowperrev to .25. Keep an eye on your fuel trims and adjust them to keep combfueltrim around 0%

Lower your AFR’s to target 11.5 until we get a handle on AFR’s.

Then post another log.

 

[1996dsm]

I updated link 12/12/14.
I used my maf to generate a base table and then thats pretty much where im at now. I will reset the table & richen up the afr's.

 

[BoostedBeaver]

Once you have completed the steps in post number 9, follow this link to help dial in the idle cruise sections. Adjust the open loop thresholds and be sure to use different gears on a hilly road and some flat roads to reach as many different cells as possible.

https://www.ecmtuning.com/wiki/sdveadjcomft

After you apply the tool, post a log.

 

[1996dsm]

Idle log after i reset the VE table and applied the tools suggestions.

 

[bucken13]

Looks good, I would smooth out your VE table do a cruise log. As long as everything is within reason, Do a WOT pull in increments of 2k rpm until you are done. But defiantly Smooth the VE table before doing a WOT pull. You can select a few VE cells right click and use the interpolate feature link has.

 

[keltalon]

Looks good,But defiantly Smooth the VE table before doing a WOT pull. You can select a few VE cells right click and use the interpolate feature link has.

I must add once you click intopolate , Your ecu is giving you a hint as to which direction you need to go just follow it in the in the adjacent cell to create the smooth transition. All in All you want to achieve the smoothest possible transition you can get from one fuel cell to the next even from cruising to WOT! Here is a secret , you will never get the perfect tune on a dyno alone, The car needs road time.

(EDIT: Irrelevant info removed)

 

[BoostedBeaver]

ISC position looks good and an average idle RPM over the entire log is 900rpms (exactly what you are commanding).

Looks like you have adjusted a few cells around idle under low load. Try loading this VE table before adjusting Airflow per rev. It just smooths the upper left hand corner.

Your Airflow per rev is still at .30. You need to go to the VE table, track datalog, and adjust the cells at idle (1.9 and 1000rpm in your current log). Adjust these cells until your airflow per rev equals .25. Keep an eye on your combFT adjusting your deadtime as needed.

You need to get some more drvie time in with the SDVEadjust tool.Make sure you are using different gears to hit higher and lower RPM as well as varying terrain to alter load at those RPMs. The more data you get, the bette the outcome will be.

Are you running V3lite or V3 full?

 

[1996dsm]

Im running v3 lite.

 

[BoostedBeaver]

This is why your VE table stops at 40.4. Make those adjustments and post another log.

Learn something new everyday. Thanks @Calan

 

[1996dsm]

Idle log with new table and airperrev averaging 25, I had to bring my deadtimes up to 645 to keep the FT's in line.

I will cruise around and use the combft tool again, but its pretty much flat roads in my area.

 

[1996dsm]

SD table after using the combft tool.

 

[BoostedBeaver]

Your work is paying off. Your idle is holding steady, ISC averages 34 but floats around 30 so I wouldn’t bother with it. When there is no electrical load, the combFT look perfect.

You reset the openloop thresholds and your CEL is set at 2*.

Now its time to go make a pull. First do a quick hit to verify boost. Then complete a 3rd gear pull. If your cell blinks (knock) let off.

AFRs should be “close” but you shouldn’t be running really lean/rich. Post up what you get.

 

[1996dsm]

3rd gear pull, I let off somewhat early.

 

[BoostedBeaver]

Here an issue I see coming. Your running lite so the VE table is only able to account for 25.7 psi. More than this will pose an issue because we run out of cells to tune and the program is no longer able to interpolate between higher PSIA cells. You may get away with a little more but you may really want to think about full V3 if you insist on 25+ PSI. The next row starts at 29.4lbs so

Where is your WB mounted in the exhaust? What fuel pump are you running? A fully filled out profile would help here since “need to know basis” really leaves something to be desired.

Your AFR is rich before boost and sky rockets lean shortly after boost possibly causing the slight knock you see. No more pulls yet. I will post a VE table for you to try when I get where I can do so.

As stated before, you should really consider talking to Tom for an upgrade to full V3.

 

[1996dsm]

Yes, i was considering upgrading link today.
My wideband is on my o2 housing about 7" from the flange.
I have a 255hp intank with a bosch 044 inline on a full -6an line.

 

[1996dsm]

Ive tried to update my profile and i always get a error.

 

[BoostedBeaver]

Your log goes leaner with airflow as if your running out of fuel. Upgrading to full V3 is needed. With the boost you are currently trying to run, you need the next PSIA column to properly tune the MAP.

These settings should add more fuel making the mixture richer. This table is not ideal, I just want to see if your car is actually able to add the fuel with inflated airflow numbers. I did try smoothing the lower right corner incase you are able to make a pull.

Make a 3rd gear pull to the same RPM and see if the AFR's straighten up. Keep an eye on the check engine (knock) light. If they even out with you commanded, make a full pull. Post up what you get.