94170015 MAP to MAF Patch:
aha. interesting.
for ref to all, here's whats replaced in the evo8 renditions/maybe i'll apply the naming scheme to them. i have not included some minor data/locaition areas on both code posts. they can be found/compared easily:
EDIT: yeah maflong's one of the reasons i took a break lol. that and longsub
EDIT2/so i don't keep bumping: i think i found the general area in the 015's maflong routine/still needs more labeling for normal people lol.
for ref to all, here's whats replaced in the evo8 renditions/maybe i'll apply the naming scheme to them. i have not included some minor data/locaition areas on both code posts. they can be found/compared easily:
Code:
ROM:000112DC ; =============== S U B R O U T I N E ======================================= ROM:000112DC ROM:000112DC ROM:000112DC sub_112DC: ; CODE XREF: sub_112AA+6p ROM:000112DC sts.l pr, @-r15 ROM:000112DE mov.l r14, @-r15 ROM:000112E0 mov r15, r14 ROM:000112E2 mov.l r1, @-r15 ROM:000112E4 mov.l r2, @-r15 ROM:000112E6 mov.l r8, @-r15 ROM:000112E8 mov.l @(h'CC,pc), r4 ; [000113B8] = off_63D0 ROM:000112EA mov.l @(h'C8,pc), r10 ; [000113B4] = sub_CC6 ROM:000112EC jsr @r10 ; sub_CC6 ROM:000112EE nop ROM:000112F0 mov.l @(h'BC,pc), r0 ; [000113B0] = unk_FFFF8890 ROM:000112F2 mov.w @r0, r0 ROM:000112F4 tst #h'20, r0 ROM:000112F6 bt loc_112FE ROM:000112F8 mov.l @(h'C0,pc), r4 ; [000113BC] = off_7914 ROM:000112FA bra loc_11300 ROM:000112FC nop ROM:000112FE ; --------------------------------------------------------------------------- ROM:000112FE ROM:000112FE loc_112FE: ; CODE XREF: sub_112DC+1Aj ROM:000112FE mov.l @(h'C0,pc), r4 ; [000113C0] = off_7914 ROM:00011300 ROM:00011300 loc_11300: ; CODE XREF: sub_112DC+1Ej ROM:00011300 mov.l @(h'C0,pc), r10 ; [000113C4] = sub_DE0 ROM:00011302 jsr @r10 ; sub_DE0 ROM:00011304 nop ROM:00011306 extu.w r0, r1 ROM:00011308 mov.l @(h'BC,pc), r4 ; [000113C8] = unk_339C ROM:0001130A mov.l @(h'C0,pc), r10 ; [000113CC] = sub_C28 ROM:0001130C jsr @r10 ; sub_C28 ROM:0001130E nop ROM:00011310 mov r0, r2 ROM:00011312 mov.l @(h'BC,pc), r4 ; [000113D0] = unk_338E ROM:00011314 mov.l @(h'B4,pc), r10 ; [000113CC] = sub_C28 ROM:00011316 jsr @r10 ; sub_C28 ROM:00011318 nop ROM:0001131A mulu r0, r2 ROM:0001131C sts macl, r8 ROM:0001131E mov r1, r4 ROM:00011320 mov.l @(h'B0,pc), r10 ; [000113D4] = sub_22E56 ROM:00011322 jsr @r10 ; sub_22E56 ROM:00011324 nop ROM:00011326 extu.w r0, r4 ROM:00011328 mov r8, r5 ROM:0001132A mov.w @(h'3C,pc), r6 ; [0001136A] = h'4000 ROM:0001132C mov.l @(h'A8,pc), r10 ; [000113D8] = sub_68A ROM:0001132E jsr @r10 ; sub_68A ROM:00011330 nop ROM:00011332 extu.w r0, r4 ROM:00011334 mov.l @(h'A4,pc), r10 ; [000113DC] = sub_590 ROM:00011336 jsr @r10 ; sub_590 ROM:00011338 nop ROM:0001133A shll2 r0 ROM:0001133C shll r0 ROM:0001133E mov.l @(h'2AC,pc), r10 ; [000115EC] = unk_FFFF898C ROM:00011340 mov.w r0, @r10 ROM:00011342 mov.l @(h'9C,pc), r10 ; [000113E0] = unk_FFFF8A90 ROM:00011344 mov.w @r10, r10 ROM:00011346 extu.w r10, r10 ROM:00011348 mov.l @(h'2A0,pc), r4 ; [000115EC] = unk_FFFF898C ROM:0001134A mov.w @r4, r4 ROM:0001134C extu.w r4, r4 ROM:0001134E mov r10, r5 ROM:00011350 mov.l @(h'90,pc), r10 ; [000113E4] = sub_762 ROM:00011352 jsr @r10 ; sub_762 ROM:00011354 nop ROM:00011356 mov.l @(h'288,pc), r11 ; [000115E0] = unk_FFFF8990 ROM:00011358 mov.w r0, @r11 ROM:0001135A mov.l @r15+, r8 ROM:0001135C mov.l @r15+, r2 ROM:0001135E mov.l @r15+, r1 ROM:00011360 mov.l @r15+, r14 ROM:00011362 lds.l @r15+, pr ROM:00011364 rts ROM:00011366 nop ROM:00011366 ; End of function sub_112DC
EDIT2/so i don't keep bumping: i think i found the general area in the 015's maflong routine/still needs more labeling for normal people lol.
Code:
ROM:00026578 ; --------------------------------------------------------------------------- ROM:00026578 ROM:00026578 cmp: ; CODE XREF: maflong+2DCj ROM:00026578 mov.l @(h'C,pc), r10 ; [00026588] = mafsource_main ROM:0002657A mov.w @r10, r10 ROM:0002657C mov.l @(h'25C,pc), r11 ; [000267DC] = mafsource1 ROM:0002657E mov.w @r11, r11 ROM:00026580 cmp/hi r11, r10 ROM:00026582 bf loc_26594 ROM:00026584 bra loc_2658C ROM:00026586 nop ROM:00026586 ; --------------------------------------------------------------------------- ROM:00026588 off_26588: .data.l mafsource_main ; DATA XREF: maflong+B2r ROM:00026588 ; maflong+1C4r ... ROM:0002658C ; --------------------------------------------------------------------------- ROM:0002658C ROM:0002658C loc_2658C: ; CODE XREF: maflong+2DAj ROM:0002658C ; maflong+2FEj ROM:0002658C mov.l @(h'24C,pc), r10 ; [000267DC] = mafsource1 ROM:0002658E mov.w @r10, r10 ROM:00026590 mov.l @(h'258,pc), r11 ; [000267EC] = mafsource_main ROM:00026592 mov.w r10, @r11 ROM:00026594 ROM:00026594 loc_26594: ; CODE XREF: maflong+2FCj ROM:00026594 mov.l @(h'248,pc), r0 ; [000267E0] = unk_FFFF8A4C ROM:00026596 mov.w @r0, r0 ROM:00026598 tst #1, r0 ROM:0002659A bf loc_265A8 ROM:0002659C mov.l @(h'25C,pc), r10 ; [000267FC] = unk_FFFF8998 ROM:0002659E mov.w @r10, r10 ROM:000265A0 mov.l @(h'240,pc), r11 ; [000267E4] = mafs1xmafmult ROM:000265A2 mov.w @r11, r11 ROM:000265A4 cmp/hi r11, r10 ROM:000265A6 bf loc_265B0 ROM:000265A8 ROM:000265A8 loc_265A8: ; CODE XREF: maflong+314j ROM:000265A8 mov.l @(h'238,pc), r10 ; [000267E4] = mafs1xmafmult ROM:000265AA mov.w @r10, r10 ROM:000265AC mov.l @(h'24C,pc), r11 ; [000267FC] = unk_FFFF8998 ROM:000265AE mov.w r10, @r11 ROM:000265B0 ROM:000265B0 loc_265B0: ; CODE XREF: maflong+320j ROM:000265B0 mov.l @(h'238,pc), r10 ; [000267EC] = mafsource_main ROM:000265B2 mov.w @r10, r10 ROM:000265B4 mov.l @(h'238,pc), r11 ; [000267F0] = unk_FFFF898A ROM:000265B6 mov.w @r11, r11 ROM:000265B8 cmp/hs r11, r10 ROM:000265BA bf loc_265DE ROM:000265BC mov.l @(h'22C,pc), r13 ; [000267EC] = mafsource_main ROM:000265BE mov.w @r13, r13 ROM:000265C0 mov.l @(h'22C,pc), r10 ; [000267F0] = unk_FFFF898A ROM:000265C2 mov.w @r10, r10 ROM:000265C4 sub r10, r13 ROM:000265C6 extu.w r13, r13 ROM:000265C8 mov.l @(h'21C,pc), r10 ; [000267E8] = unk_FFFF899E ROM:000265CA mov.w @r10, r10 ROM:000265CC extu.w r10, r10 ROM:000265CE cmp/hs r13, r10 ROM:000265D0 bf loc_265D6 ROM:000265D2 bra loc_265FC ROM:000265D4 nop ROM:000265D6 ; --------------------------------------------------------------------------- ROM:000265D6 ROM:000265D6 loc_265D6: ; CODE XREF: maflong+34Aj ROM:000265D6 mov.l @(h'210,pc), r10 ; [000267E8] = unk_FFFF899E ROM:000265D8 mov.w r13, @r10 ROM:000265DA bra loc_265FC ROM:000265DC nop ROM:000265DE ; --------------------------------------------------------------------------- ROM:000265DE ROM:000265DE loc_265DE: ; CODE XREF: maflong+334j ROM:000265DE mov.l @(h'210,pc), r13 ; [000267F0] = unk_FFFF898A ROM:000265E0 mov.w @r13, r13 ROM:000265E2 mov.l @(h'208,pc), r10 ; [000267EC] = mafsource_main ROM:000265E4 mov.w @r10, r10 ROM:000265E6 sub r10, r13 ROM:000265E8 extu.w r13, r13 ROM:000265EA mov.l @(h'208,pc), r10 ; [000267F4] = unk_FFFF89A2 ROM:000265EC mov.w @r10, r10 ROM:000265EE extu.w r10, r10 ROM:000265F0 cmp/hs r13, r10 ROM:000265F2 bf loc_265F8 ROM:000265F4 bra loc_265FC ROM:000265F6 nop ROM:000265F8 ; --------------------------------------------------------------------------- ROM:000265F8 ROM:000265F8 loc_265F8: ; CODE XREF: maflong+36Cj ROM:000265F8 mov.l @(h'1F8,pc), r10 ; [000267F4] = unk_FFFF89A2 ROM:000265FA mov.w r13, @r10 ROM:000265FC ROM:000265FC loc_265FC: ; CODE XREF: maflong+34Cj ROM:000265FC ; maflong+354j ... ROM:000265FC mov.l @(h'1FC,pc), r2 ; [000267FC] = unk_FFFF8998 ROM:000265FE mov.w @r2, r2 ROM:00026600 mov.l @(h'1F4,pc), r8 ; [000267F8] = unk_FFFF899A ROM:00026602 mov.w @r8, r8 ROM:00026604 extu.w r8, r8 ROM:00026606 extu.w r2, r2 ROM:00026608 cmp/hs r8, r2 ROM:0002660A bf loc_26614 ROM:0002660C mov r2, r13 ROM:0002660E sub r8, r13 ROM:00026610 bra loc_26618 ROM:00026612 nop
Last edited by evoredy; Feb 2, 2009 at 05:49 AM.
????
So how can us commoners use the code?
I have played with the patch listed earlier until I am blue in the face. I cannot, for the life of me, ge my car to stop rich stalls at a roll to stop. GRRRRR.
So how can us commoners use the code?
I have played with the patch listed earlier until I am blue in the face. I cannot, for the life of me, ge my car to stop rich stalls at a roll to stop. GRRRRR.
Evolved Member
Joined: May 2006
Posts: 2,399
Likes: 6
From: UK
The code discussion is about converting to full SD.
If the MAF limiting patch has been applied correctly to your ROM, then I think it must be a setup issue as it should work. This is not a criticism, I know how many hours of frustration it can take playing with these things. I think a lot of the problem is that you're trying to tune a secondary airflow calculation which is only used in certain circumstances, and this is always tricky. I think on cars like this a blow through MAF or full SD conversion would be the way to go, hopefully soon this will be possible.
If the MAF limiting patch has been applied correctly to your ROM, then I think it must be a setup issue as it should work. This is not a criticism, I know how many hours of frustration it can take playing with these things. I think a lot of the problem is that you're trying to tune a secondary airflow calculation which is only used in certain circumstances, and this is always tricky. I think on cars like this a blow through MAF or full SD conversion would be the way to go, hopefully soon this will be possible.
I cannot get the car to stop running RICH (10.6 to 11.8) at a roll to stop. I removed the MAP to MAF patch to ensure my fuel trims are set cottectly, of which they are (all less than +/- 3). Then, I re-installed the patch and still rich. The patch also makes my fuel trims adjust constantly.
The car will start and idle perfectlywith 14.7 AFR when cold. It isn't until i get rolling that the issue occurs.
I am only trying to use the patch to keep the car from stalling because of FP Green, big cams (revolvers) and an HKS intake pipe with a K&N small cone filter. Basically my car is modded to the hilt.
I tried increasing the resolution of the idle stabily control sensitivity to 138. The car does recover a bit quicker than before but still runs rich on a roll to stop.
I set the MAP to MAF VE RPM to look exactly like lean spool RPM values. This was done becasue, as i noted earlier, changing the VE RPM values also changes the Lean Spool RPM values.
I then set a max of 255 in every cell extept the 500 and 1000 RPM. I have 500 set to 0 and 1000 set to 127 (1/2 of 255).
Another thing I tried is to raise the MAP to MAF offset to 140, then 150, then 175. These seemed to help each time I raised it as the logged MAP Emulated MAF values were closer to the MAF Hz.
The car pulls great once moving, though I did notice it is a tad richer than without the patch. Funny thing is the O2 values read by my Zt2 are nearly identical to my fuel map settings with the patch installed.
I also noticed that when I leave the car in gear and let the engine slow the car, the O2 does not cut to 21 AFR like without the patch. It is like the car is trying to maintain 14.7 cruise AFR. After a bit of time it will eventually go to 21 AFR. The patch could also be messing with the
Decel Fuel Cut Delay.
I have my EGR blocked and disabled. I also have lean spool disabled, both through periphery. Might this be causing a bit of an issue?
The car will start and idle perfectlywith 14.7 AFR when cold. It isn't until i get rolling that the issue occurs.
I am only trying to use the patch to keep the car from stalling because of FP Green, big cams (revolvers) and an HKS intake pipe with a K&N small cone filter. Basically my car is modded to the hilt.
I tried increasing the resolution of the idle stabily control sensitivity to 138. The car does recover a bit quicker than before but still runs rich on a roll to stop.
I set the MAP to MAF VE RPM to look exactly like lean spool RPM values. This was done becasue, as i noted earlier, changing the VE RPM values also changes the Lean Spool RPM values.
I then set a max of 255 in every cell extept the 500 and 1000 RPM. I have 500 set to 0 and 1000 set to 127 (1/2 of 255).
Another thing I tried is to raise the MAP to MAF offset to 140, then 150, then 175. These seemed to help each time I raised it as the logged MAP Emulated MAF values were closer to the MAF Hz.
The car pulls great once moving, though I did notice it is a tad richer than without the patch. Funny thing is the O2 values read by my Zt2 are nearly identical to my fuel map settings with the patch installed.
I also noticed that when I leave the car in gear and let the engine slow the car, the O2 does not cut to 21 AFR like without the patch. It is like the car is trying to maintain 14.7 cruise AFR. After a bit of time it will eventually go to 21 AFR. The patch could also be messing with the
Decel Fuel Cut Delay.
I have my EGR blocked and disabled. I also have lean spool disabled, both through periphery. Might this be causing a bit of an issue?
I notice the little rich AFR rolling to a stop as well then goes full lean idle 16.00 max lean on my wideband. It'll try to correct but it like to go full lean
My Decel fuel cut seems to be ok. WOT pulls are spot on
My Decel fuel cut seems to be ok. WOT pulls are spot on
Evolved Member
Joined: May 2006
Posts: 2,399
Likes: 6
From: UK
Not useless at all evoredy. Very useful work you've done, and you also understand these routines. I'm also sharing the RPM with other tables, I don't think it is a problem as my RPM VE table has little effect and I don't change the RPM values from their stock 500-8000 RPM.
I think the difficulties with tuning the limit system are that you have two airflow calculations, and a slightly confusing offset.
I think the difficulties with tuning the limit system are that you have two airflow calculations, and a slightly confusing offset.
I think your patch will work for those of us not wanting to go full SD. Maybe you can just make the minor repairs so that those of us with after market intakes and smaller turbos can take advantage of better drivability.
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94170015, 96530006, chart, cheme, compensation, evo, iat, immobilizer, ix, leanspool, maf, map, programmer, rom, scaling
