Adjusting the VE table, I'm not sure I understand it, but I tried it.

[damanx]

Thanks for that reply.

I was thinking of posting a new thread asking these questions as they seem like the newbie questions that may come up often.

Having an idea of the range that you want to get to makes it easier since knowing that you just need to be around there, but not exactly on top of them.

[EagleMark]

Well then there's this:
"BLM - Integrator Delta To Move BLM" INT must move by this amount to make an BLM change. It is set to 4.
and how far will it move?
"BLM - BLM Delta From INT" When Integrator Delta To Move BLM has been met BLM will move by this amount. It is set to 1.

So realistically you can only get BLM to within 3 of 128... so if your BLM is reading 125 to 131 your INT is 124 to 132... I think...

The reason you see some other numbers are Initial " BLM - Min/Max BLM at Key-on (initial)" Initial BLM readings when started in Open Loop. These are set to 125 to 135 and can be anywhere in between depending on what BLM was when shut down.

Then there's the BLM cells? More? Yup, 16 cells divided up to RPM and MAP, this is where built cammed engines really have issues with idle as BLM is in same cells as off idle if you don't change them. There's actually a 17 to for idle and some an 18 for Decel and DFCO.

 LD2AB   FCB  8      ; Freq of blk learn update, (600 Msec) 
                    ; VAL = (N * 20)+1 
					;---------------------------------------------
					;
					;                   _______|______|_______|______
					;                          |      |       |
					;                     12   |  13  |  14   |  15    
					;                   _______|______|_______|______  HI MAP 81 Kpa
					;                          |      |       |
					;                      8   |  9   |   10  |  11     
					;                   _______|______|_______|______  MID MAP 58 Kpa
					;                          |      |       |
					;                      4   |  5   |   6   |   7     
					;                   _______|______|_______|______  LO  MAP 18 Kpa
					;                          |      |       |
					;                      0   |  1   |   2   |   3
					;                   _______|______|_______|______
					;                          |      |       |       
					;     750   LO RPM   ______|      |       |
					;                                 |       |
					;    1800   MID RPM  _____________|       |
					;                                         |
					;    2600   HI RPM   _____________________|
					;

I was thinking of posting a new thread asking these questions as they seem like the newbie questions that may come up often.

Actually most newbies are not as inquisitive as you! They just want to know how. Done! and don't care why... You make me rethink everything I have learned and see if I still understand and can explain.

[gregs78cam]

Mark, the BLM cells is something I have been contemplating tweaking. Here is my thinking. If I make the lower split at around 25-30, that puts DE and DFCO together, but DFCO basically gets filtered out by the PCM locking to 128. So DE gets to be in cells 0-3. Idle will be in cell 4 at <800RPM and around 40Kpa. Cruise then gets cells 5 & 6. Cells 8-11 would be for moderate Acceleration, and 12-15 for heavy Accel / WOT. What do you think?

 
                    ;                   _______|______|_______|______
                    ;                          |      |       |
                    ;                     12   |  13  |  14   |  15    
                    ;                   _______|______|_______|______  HI MAP 65 Kpa
                    ;                          |      |       |
                    ;                      8   |  9   |   10  |  11     
                    ;                   _______|______|_______|______  MID MAP 48 Kpa
                    ;                          |      |       |
                    ;                      4   |  5   |   6   |   7     
                    ;                   _______|______|_______|______  LO  MAP 28 Kpa
                    ;                          |      |       |
                    ;                      0   |  1   |   2   |   3
                    ;                   _______|______|_______|______
                    ;                          |      |       |       
                    ;     800   LO RPM   ______|      |       |
                    ;                                 |       |
                    ;    1600   MID RPM  _____________|       |
                    ;                                         |
                    ;    3000   HI RPM   _____________________|
                    ;

[RobertISaar]

that's not far off of where i ended up with my 3100...

900/1600/2400
30/55/75

since i drive with the TCC locked at almost all times and idle at ~600, MAP is the primary determination.

the below 900 cells are basically idle, 900-1600 is light throttle with TCC sometimes locked, 1600-2400 is moderate throttle TCC usually locked and 2400+ somewhat heavy throttle with TCC usually unlocked. then the MAP thresholds define them further.

in reality, i really don't need more than 1 BLM cell... in fact, i cut down the other car to only one and saw nothing bad from it after VE was dialed in.

[EagleMark]

Mark, the BLM cells is something I have been contemplating tweaking. Here is my thinking. If I make the lower split at around 25-30, that puts DE and DFCO together, but DFCO basically gets filtered out by the PCM locking to 128. So DE gets to be in cells 0-3. Idle will be in cell 4 at <800RPM and around 40Kpa. Cruise then gets cells 5 & 6. Cells 8-11 would be for moderate Acceleration, and 12-15 for heavy Accel / WOT. What do you think?

 
                    ;                   _______|______|_______|______
                    ;                          |      |       |
                    ;                     12   |  13  |  14   |  15    
                    ;                   _______|______|_______|______  HI MAP 65 Kpa
                    ;                          |      |       |
                    ;                      8   |  9   |   10  |  11     
                    ;                   _______|______|_______|______  MID MAP 48 Kpa
                    ;                          |      |       |
                    ;                      4   |  5   |   6   |   7     
                    ;                   _______|______|_______|______  LO  MAP 28 Kpa
                    ;                          |      |       |
                    ;                      0   |  1   |   2   |   3
                    ;                   _______|______|_______|______
                    ;                          |      |       |       
                    ;     800   LO RPM   ______|      |       |
                    ;                                 |       |
                    ;    1600   MID RPM  _____________|       |
                    ;                                         |
                    ;    3000   HI RPM   _____________________|
                    ;

Before you get to excited about Decel, DFCO, idle, AC, CCP, EGR, WOT etc... watch the BLM cell number in data. I've never worked with them hard in $42, $0D and $0E except idle, but in LT1 $EE there is a 16,17 and 18!

16 and 17 do have there purpose to catch BLM learn for 0% TPS idle if at 1% they go into other cells. So it looks like Decel/DFCO.

Cell 18 seems to be a catch all? Also seems to change in years and motors. But from what I can tell it is used for CCP, sometimes EGR and WOT or hard acceleration... but still don't have it totally figured out.

Also have to look at the RPM and MAP hysteresis to change cells. If your idling at 800 RPM, then go 900, if idle MAP is 40, then go 45, keeping idle with a cam far away from driving is key. Just because it's say 800 RPM and 40 MAP the hysteresis may be another 100 RPM and 5 MAP (or more) to change cell up or down.

[1BadAction]

So, would you guys say it's best to tune fueling in cool dry weather? Or is that splitting hairs and doesn't really matter?

[dave w]

So, would you guys say it's best to tune fueling in cool dry weather? Or is that splitting hairs and doesn't really matter?

I live in the Northwest part of the US, about 10 miles from Portland Oregon. Cool wet weather is absolutely the best weather to tune with! Is there any other kind of weather?

[damanx]

Actually most newbies are not as inquisitive as you! They just want to know how. Done! and don't care why... You make me rethink everything I have learned and see if I still understand and can explain.

Let me start by saying that I appreciate that, AND, I sometimes analyze things more than they need to be, but sometimes I start messing with things and dig deeper into them when they intrigue me.

Anyways, I believe I have discovered a reason for the numbers showing slightly leaner conditions than what I had started with. It seems that I'm not getting a clean data log when I don't actually restart TunerPro. What I was typically doing was just clearing the tables and pressing record. I'm not sure if it's my laptop, a corrupt install, or me making an assumption that the data logs started clean just by clearing the tables.

I should probably RTFM.

I have no clue of this assembly code, but would love to learn it, or at least try to. Is the full code for the $42 downloadable here? Bear with me because I don't know if special software is required to read it is it available as a text file? My experience with programming is limited to what little I once could do on a TRS-80, currently a little with TI-85.

I found this thread and will read through it, (along with the $42 hack and lean highway cruise patch thread).

http://www.gearhead-efi.com/Fuel-Inj...embly-Assembly

[EagleMark]

I always stop the recording and it will prompt to save as. Next time record and it's clean start till stop and save as...

[damanx]

That is what I had been doing, but then decided to close the program and restart it to see if there was any difference and there is. Must be something going on with this laptop.