'165 with a v6 running $6E ARAPWB base bin.

OK here's another stumper for you guys. Why aren't my blm's being recorded for any cell other than idle? Learn control enable temp checks out and highway mode isn't interfering. Maybe wb patch is interfering somehow?

 

Are they not being recorded or does it never move out of idle cell?

 

It never records for any cell but idle. Moves around fine.

 

Patch has nothing to do with BLM. What software are you using?

 

IDK, just throwing it out there. I'm using tunerpro.

 

Here's the bin.

 

Any ideas?

 

When I open it with my $6E xdf, it's all jumbled. What xdf are you using?

 

I changed the .txt to .bin and it opened okay with a 6E xdf.

Your cell boundry at 4C8 is set to 3200 rpm, so lower this rpm.

900 1200 2400 rpm
15 30 60 grams/sec

Try these and think this way, bottom is idle, middle is cruise, top is over freeway steady speeds. adjust to match your engines ranges.

 

I have to admit I'm a little confused by the terminology. Are the blms being updated, but not stored in the Stay Alive Memory (SAM Cells)?

Or are they always being reset to 128?

Can you explain?

 

Sorry, should've said it loses the recorded blm's after key off. I don't think the way I have the cells set up is the problem, the stock v6 bins are all set up as 6325, 6350 and 6375 for the rpm limits in the $3A mask.

 

;==============================================
; Memory Stay Alive Tables & Param's
; TYPE $6E MY89 L98 ARAP
;
; TO FORCE BLM'S TO 128,S SET NEXT 4 TO 128
;==============================================
LC4D8 FCB 118 ; 118, Low Lmt for SAM Cell 0
LC4D9 FCB 150 ; 150, High Lmt for SAM Cell 0
;
LC4DA FCB 128 ; 128, Low Lmt for other SAM Cell's
LC4DB FCB 150 ; 150, High Lmt for other SAM Cell's

I'd guess that your blms (other than cell 0) are below the lower limit of 128.

 

No, I changed that when I set up my first $6E bin.

 

What's your blm in cell 10?

I looks to me like its only storing the value from cell 10 in SAM B.

LC4DD FCB 10 ; SAM Cell B Number, Non Idle

Maybe try changing this value to another (more active) cell.

I played with this a little in my own car with a $32B bin.

I first had to reduce the enable temp from 190F, since I don't always run that hot (I hadn't realized this before, doh!). I then set the SAM Cell B number to 11 instead of 9 (ARAP default is 10), since 11 is my typical cruise cell. After key off an on, it appears that the stored value from Cell 11 is loaded into all of the non-zero cells and the limit checking is performed, which is consistent with what I see in the code.

 

With your boundaries, you only have a 25 rpm window for cell 10, between 3200 rpm and 3225 rpm.

With these boundaries, you aren't very likely to remain in cell 10 long enough to ever update the blm.

As Pandin already pointed out, your cell boundaries are the root-cause of the problem, (along with the use of cell 10 for SAM cell B, with said boundaries).

Since the value from cell 10, is being loaded into the cells other than zero at ign on, It is likely that this value is always 128, so you don't see any effect.

Either change the boundaries or Correct the SAM cell B cell to be reflective of one of the common cruise cells.

This should fix it.

 

Hmm, glad I can talk to people that can see how the code operates. That's a crappy way to store blms... but a great memory space saver I suppose. I'll try setting the sam b to 5 (my cruise cell) and see what happens. I have the other rpm boundaries set at 3200 to force it into the power enrichment cell at certain times. Helps me with transient stuff.

 

The non-idle cell # was the problem. Thanks again.

Now onto why I need 94% wot fuel change to get 12.5:1...

 

Target or actual?

A 12.5:1 AFR target should be achieved with -4.9% rpm PE (using a 0-50% scale) and the standard setting of 22.7% (0-100% scale) warm coolant PE.

With the bin you posted you should see a PE target AFR of 13.09 above 2000 rpm, with a little dip to 12.91 between 4000 and 4400 rpm with warm/hot coolant (133-219F).

If the actual AFR is only 12.5 with a target AFR in the 8.76 range (based on 94% rpm pe) then you're overflowing the bpw calculation which is limiting the pulse width (assuming that your fuel system pump and injectors are up to the task).

Do you really need to run any richer than 12.5?

 

Actual afr. When I have it set to 14-17% rpm enrich like in the bin I posted it only delivers 15:1!

It seems to run best richer, about 11:1 is where I typically run. I've heard other 60* tuners found that they make best power with a rich mix also.

 

In that case, I'd guess your MAF calibration is too low in the mid-high airflow region. Inflate your calibration by about 20% up top and smooth the curves.

Also your max airflow vs. rpm table looks like it may be limiting the airflow. Try opening this up first before adjusting the MAF tables. Maybe your just flowing more than what you have in the table.

 

There's something else going on. I could get within 10% of target afr before I started using the wb patch. I must have missed something in the changeover, just need to dig some more...