EFIDynoTuning Forum

efloth

Transient fuel multiplier & Transient Constant Multiplier. Id try setting them .031 (all xMul cells of the latter)

Then set the accel and decel transient parameters to zero and move up from there

efloth

I'm glad you're making some progress. I spent way too much time working on my VE table trying to fix issues that ended up being too much transient fuel. Remember you are working with a base tune that was set up for 19 lb injectors. You can correct it with the VE table, but I think you're better off reducing transients to zero and see if that produces the same improvement. It's at least worth the 5 minutes to rule that out.

efloth

http://www.efidynotuning.com/foxfan.htm

Duh. Found this but it appears pin 41 is used for the OD switch. Any other ther pins that could work?

https://web.archive.org/web/20070112084 ... nouts.html

efloth

I feel your sentiment. The learning curve is steep but I was eventually able to achieve better than stock drivability on my mild inline 6. You're obviously dealing with a different set of variables but my core issues were transient fuel and accel enrichment. I ended up setting those multipliers next to zero. I think we can figure this out before you spend more money. Send a screenshot of all the transient and accel enrichment parameters.

It's a shame that moates was shut down. I have a quarter horse and jaybird so I can use SCT chips moving forward.

efloth

Does anyone have sample code and know what pin to use? I'd like to control the fan in software instead of a static temp switch so I can turn it on when AC is on as well. Any guidance is greatly appreciated.

efloth

Oh yes, that could be your core issue. I'm running the deka 80s that Michael suggested since they have a mostly linear slope.

In preferences make the data acquisition tab look like this:

Turning on tracing requires that you select the data types for each desired parameter in the xdf. It takes a bit of time but it's easy work. There's a nice guide out there if you Google for it. Michael does not select them since he doesn't use data to tracing normally.

efloth

What values do you have for engine displacement? It's something like sachrg and basemd I think. I used the values from J1X in A1C and had it running pretty good. You will have to dial in the ve table again if you try this though.

efloth

Does your idle still surge with the IAC unplugged? Are you sure it's not defective? I had issues getting mine dialed in until I finally replaced the IAC and things were much better.

efloth

Thank you sir! Merry Christmas to you and yours as well! Out here in Cali we don't know what real weather is, but I hope everyone stays warm and safe out there in the real world.

efloth

This code works beautifully on the bench using compressed air. Map_word appears to be correct but I'm not sure how mapope is calculated. Anyone have a turbo setup to try this on?

Code: Select all

MAP_CALC:
c200: 89,6c,59,58         cmpw  R58,596c         
c204: db,0e               jc    c214             if (R58 < 596c)  {
c206: a1,6c,59,58         ldw   R58,596c         R58 = 596c;
c20a: a1,bd,6c,56         ldw   R56,6cbd         R56 = 6cbd;
c20e: a1,21,23,5c         ldw   R5c,2321         R5c = 2321;
c212: 20,de               sjmp  c2f2             goto c2f2; }

c214: 89,5f,64,58         cmpw  R58,645f         
c218: db,0a               jc    c224             if (R58 < 645f)  {
c21a: a1,bd,6e,56         ldw   R56,6ebd         R56 = 6ebd;
c21e: a1,21,23,5c         ldw   R5c,2321         R5c = 2321;
c222: 20,ce               sjmp  c2f2             goto c2f2; }

c224: 89,5a,71,58         cmpw  R58,715a         
c228: db,0a               jc    c234             if (R58 < 715a)  {
c22a: a1,f1,69,56         ldw   R56,69f1         R56 = 69f1;
c22e: a1,4a,21,5c         ldw   R5c,214a         R5c = 214a;
c232: 20,be               sjmp  c2f2             goto c2f2; }

c234: 89,db,7c,58         cmpw  R58,7cdb         
c238: db,0a               jc    c244             if (R58 < 7cdb)  {
c23a: a1,88,63,56         ldw   R56,6388         R56 = 6388;
c23e: a1,7b,1e,5c         ldw   R5c,1e7b         R5c = 1e7b;
c242: 20,ae               sjmp  c2f2             goto c2f2; }

c244: 89,e0,88,58         cmpw  R58,88e0         
c248: db,0a               jc    c254             if (R58 < 88e0)  {
c24a: a1,c4,5e,56         ldw   R56,5ec4         R56 = 5ec4;
c24e: a1,2a,1c,5c         ldw   R5c,1c2a         R5c = 1c2a;
c252: 20,9e               sjmp  c2f2             goto c2f2; }

c254: 89,72,96,58         cmpw  R58,9672         
c258: db,0a               jc    c264             if (R58 < 9672)  {
c25a: a1,10,59,56         ldw   R56,5910         R56 = 5910;
c25e: a1,19,19,5c         ldw   R5c,1919         R5c = 1919;
c262: 20,8e               sjmp  c2f2             goto c2f2; }

c264: 89,3f,a2,58         cmpw  R58,a23f         
c268: db,0a               jc    c274             if (R58 < a23f)  {
c26a: a1,7e,53,56         ldw   R56,537e         R56 = 537e;
c26e: a1,d3,15,5c         ldw   R5c,15d3         R5c = 15d3;
c272: 20,7e               sjmp  c2f2             goto c2f2; }

c274: 89,ff,ad,58         cmpw  R58,adff         
c278: db,0a               jc    c284             if (R58 < adff)  {
c27a: a1,00,4e,56         ldw   R56,4e00         R56 = 4e00;
c27e: a1,00,13,5c         ldw   R5c,1300         R5c = 1300;
c282: 20,6e               sjmp  c2f2             goto c2f2; }

c284: 89,ff,b9,58         cmpw  R58,b9ff         
c288: db,0a               jc    c294             if (R58 < b9ff)  {
c28a: a1,00,49,56         ldw   R56,4900         R56 = 4900;
c28e: a1,00,11,5c         ldw   R5c,1100         R5c = 1100;
c292: 20,5e               sjmp  c2f2             goto c2f2; }

c294: 89,ff,c5,58         cmpw  R58,c5ff         
c298: db,0a               jc    c2a4             if (R58 < c5ff)  {
c29a: a1,00,44,56         ldw   R56,4400         R56 = 4400;
c29e: a1,00,0e,5c         ldw   R5c,e00          R5c = e00;
c2a2: 20,4e               sjmp  c2f2             goto c2f2; }

c2a4: 89,ff,d1,58         cmpw  R58,d1ff         
c2a8: db,0a               jc    c2b4             if (R58 < d1ff)  {
c2aa: a1,00,3f,56         ldw   R56,3f00         R56 = 3f00;
c2ae: a1,00,0c,5c         ldw   R5c,c00          R5c = c00;
c2b2: 20,3e               sjmp  c2f2             goto c2f2; }

c2b4: 89,ff,dd,58         cmpw  R58,ddff         
c2b8: db,0a               jc    c2c4             if (R58 < ddff)  {
c2ba: a1,00,3a,56         ldw   R56,3a00         R56 = 3a00;
c2be: a1,00,0a,5c         ldw   R5c,a00          R5c = a00;
c2c2: 20,2e               sjmp  c2f2             goto c2f2; }

c2c4: 89,ff,e9,58         cmpw  R58,e9ff         
c2c8: db,0a               jc    c2d4             if (R58 < e9ff)  {
c2ca: a1,00,35,56         ldw   R56,3500         R56 = 3500;
c2ce: a1,00,07,5c         ldw   R5c,700          R5c = 700;
c2d2: 20,2e               sjmp  c302             goto c302; }

c2d4: 89,ff,f5,58         cmpw  R58,f5ff         
c2d8: db,0a               jc    c2e4             if (R58 < f5ff)  {
c2da: a1,00,30,56         ldw   R56,3000         R56 = 3000;
c2de: a1,00,05,5c         ldw   R5c,500          R5c = 500;
c2e2: 20,0e               sjmp  c2f2             goto c2f2; }

c2e4: a1,ff,ff,58         ldw   R58,ffff         R58 = ffff;
c2e8: db,0a               jc    c2f4             if (R58 < f5ff)  {
c2ea: a1,00,2a,56         ldw   R56,2a00         R56 = 2a00;
c2ee: a1,00,02,5c         ldw   R5c,200          R5c = 200;
c2f2: 6c,56,58            ml2w  R58,R56          lR58 *= R56;
c2f5: 68,5c,5a            sb2w  R5a,R5c          R5a -= R5c;
c2f8: c3,e4,a6,5a         stw   R5a,[Re4+a6]     IMAP_WORD = R5a;
c2fc: 91,40,a0            orb   Ra0,40           B6_MUPET_FLAG_a0 = 1;
c2ff: 91,01,a1            orb   Ra1,1            B0_MAPUP_NORM_a1 = 1;
c302: 38,a7,19            jb    B0,Ra7,c31e      if (B0_V_VACFLG_a7 = 0)  {
c305: 71,f7,a6            an2b  Ra6,f7           B3_MFMFLG_a6 = 0;
c308: c3,e4,a4,5a         stw   R5a,[Re4+a4]     MAP_WORD = R5a;
c30c: 09,03,5a            shlw  R5a,3            R5a <<= 3;
c30f: b0,5b,ba            ldb   Rba,R5b          MAP = R5b;
c312: 91,20,52            orb   R52,20           B5_ISF_UP_FLG_52 = 1;
c315: c3,e4,a0,00         stw   R0,[Re4+a0]      DT12SA = 0;
c319: c3,e4,a8,00         stw   R0,[Re4+a8]      MAPCNT = 0;
c31d: f0                  ret                    return; }

c31e -> ffff = 0xff  ## fill ##

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