My stage 2 logs (Mickeyd stg1 based) How do they look

[testes1010]

Don't touch the turbodynamics.

 

Only reason I mentioned TD table was the 20% increase in WGD% and how the pressure was oscillating just a bit, but I didn't look at how lean the AFRs went at the same time.

 

I noticed the g/sec & load dropped significantly at that point as well which could explain the AFR change(ie; target change) or a post-maf/pre-turbo intake would explain it as well. I'd check the recirc line on the BPV since that was fiddle with during the TMIC swap out.

[mickeyd2005]

Only reason I mentioned TD table was the 20% increase in WGD% and how the pressure was oscillating just a bit, but I didn't look at how lean the AFRs went at the same time.

 

I noticed the g/sec & load dropped significantly at that point as well which could explain the AFR change(ie; target change) or a post-maf/pre-turbo intake would explain it as well. I'd check the recirc line on the BPV since that was fiddle with during the TMIC swap out.

 

That's true, but the 20% is only in the high boost error range. When the boost error is small, the TD proportional is very small.

 

The oscillation between 3000 rpm and 3600 rpm is due to overboost by about 0.5 psi. Not a big deal. It's really the TD integral moving around here due to the 0.5 psi overboost.

 

The problem is at 3675 rpm.

 

At 3675 rpm, the boost drops from 17.27 psi to 12.91 psi. That's got to be a boost leak. The ecu sees the big boost error and applies a large TD proportional which effectively closes the wastegate. This then causes further problems.

 

I think the bottom line is that there is a leak somewhere.

[testes1010]

I think the bottom line is that there is a leak somewhere.

 

Agreed..

[black318i]

You should drop initial and max by about 30% and retune the timing table.

 

You probably want to check your fueling too. When AFR #1 = 12.63, your true AFR = VERY LEAN.

 

You've got a LOT of knock going on there.

 

Something's very wrong.

 

How did you come up with 30%?

[mickeyd2005]

The 30% was arbitrary to cut boost low enough so that you can sort out your timing.

 

However, you have a bigger issue which is the boost leak.

[black318i]

Ok I adjusted Initial and Max WGDC and the overboost issue is gone. Target boost is 17 and peaks at about 17.27, but mostly just under 17. AFR at WOT is 11.14. I also raised the boost limit fuel cut from 17.4 to 18 at 14.7. IAM (4-byte)* seem out of wack since the TMIC though. It's been .875 and .7 even after a reset and right after starting doing nothing but idling. I thought its supposed to be 1?

[mickeyd2005]

Did you find the leak?

 

The IAM will be 0.7 until you do a constant throttle acceleration.

[black318i]

Ok thanks. I didn't find a leak. I think the boost drop and AFR drop had something to do with the overboost p0224 CEL I was getting with my old WGDC settings.

 

On your Knock Counter tool is it ok to clear out the data in the AVCS table and paste mine in even though table for the example is larger than mine.

 

Also does:

 

Fine Learning rpm range = Fine Correction Range (RPM)

Fine Learning Load Ranges = Fine Correction Range (Load)

 

If not where can they be found?

[mickeyd2005]

That's not how overboost works.

 

In any case, the dip in boost occurred before you hit overboost limit. The overboost occurred because the wastegate was closed after the boost drop.

[black318i]

Ok I see that now thanks. I'm not sure what went on then. Everything checked out ok as far a suspect boost leak and the issue seems to be gone now. So are my assumptions on the Knock counter spread sheet correct?

[mickeyd2005]

Yes, just copy and then paste special values only. Clear the values that you don't use.

[black318i]

Ok, but I can't find Fine Learning rpm range and Fine Learning Load Range. The closest thing I found was Fine Correction Range (RPM) and Fine Correction Range (Load) under ignition timing -knock control. Are these the correct tables? Also the instructions say to reset the ECU before loging. So is a reset required for each logging session that will be appended? Sorry for all the questions. I take things quite literally. Also I'm a big hands on leaner so going stricly by written instructins has been a chalange for me.

[mickeyd2005]

Yes, those are the correct values (Fine learning ranges).

 

You no longer have to do a ecu reset.

 

You now have to get a learning view and populate the FLKC table initially. Then you need to log continually after that. You can stop the car, but the next time you start the car, you should continue logging. The reason is that the spreadsheet keeps track of FLKC and so you don't want FLKC changing during a time when you didn't log.

 

I've got a new spreadsheet that uses knock sum. It's much simpler. I might post that sometime in the future.

[black318i]

Great thanks

[black318i]

Are the Current and Worst FLKC tables supposed to change after you run filter data? Also under the Knock tab on the Minimum total correction table are the two shades of red obvious? I have cells showing -0.48 to -5.40 and they all seem to be the same color and should I even bother making changes to cells showing 1-2% number of events total?

[mickeyd2005]

The user populates the initial FLKC table.

 

The current and worst case FLKC will change. Sometimes they will be equal to each other.

 

-5.4 is bad.

 

This spreadsheet is really meant only for fine tuning. If you have -5.4, there is something else wrong.

[mickeyd2005]

I would really look for a leak.

 

You don't want to tune your car when you have a leak. Because if you later find the leak and fix it, something bad might happen.

[black318i]

Well I did a pressure test and found a leak. Now that it's fixed I think I'm going to get a paper filter so that my intake will truly be stock and see how my MAF scaling is. Back to the spreadsheet. I did enter the data for the three FLKC tables, but what I'm wondering is are they supposed to change their own after running Filter Data? Initial seems to be untouched, but Current and Worst are being altered after filtering.

[mickeyd2005]

The spreadsheet keeps track of knock by keeping track of FLKC.

 

So... yes, they are supposed to change.

[lepich]

What if you have a positive KLKC?

I use to have nice map based on a mickey'd st2 map, but recently everything gets chenged: some sells show negative KLKC, which i see knock in my logs, but also, hte last column (>1.60 load) showed positive FLKC..

never seen before, what does this mean? I meAn positive FLKC

[mickeyd2005]

What if you have a positive KLKC?

I use to have nice map based on a mickey'd st2 map, but recently everything gets chenged: some sells show negative KLKC, which i see knock in my logs, but also, hte last column (>1.60 load) showed positive FLKC..

never seen before, what does this mean? I meAn positive FLKC

 

It means your IAM < 1. What changed?

 

Which map are you using. I have never published a stage 2 map. I only put one out for stage 2.5 (FMIC with K&N intake).

[lepich]

I've used stage 2 map based on your's st1 from roamraider forum..

http://www.romraider.com/forum/topic3271.html this one.

yes, my IAm dropped, according to LV.

Nothing was changed, except it is warmer than before, now 56-60F, use to be 40-45..

But again, the same map was fine before, same temp as now.. got a leak?

[mickeyd2005]

You're going to have to post some information.

 

Try posting your learning view .csv and either some random driving logs or some WOT logs. Log the same parameters that havanahjoe is logging for his 2008 spec B tune.

[lepich]

Ok, sure. I am going to reset it now, and drive around.

[mickeyd2005]

You shouldn't reset it.