| Author | Message | |||
     Greg_e |
OK, so I spent some time datalogging and even touching up the map manually and it's pretty good now, but I have a couple of problems... #1 when cold the idle is a little rough seems like it wants to stall, is that because it is now too rich during the cold start additional fuel phase? To fix this should I take away enrichment down at the cold end of the scale? #2 when warmed up and I snap the throttle open it bogs and tries to die, sometimes I get a pop back through the intake. Is this something to do with the throttle opening enrichment and should I bring this down a bit? Should I just reduce the fuel cell at idle to accomplish the same thing? I really want this better to reduce the possibility of stalling at stops and during downshift. It currently idles with an EGO correction that oscillates right around 100, before tuning it would oscillate around 135 when cold and 115 when warm (during idle). AFV is still 100 and will probably stay right around that area until the weather changes again. Here is the front fuel map, rear map is the same but 3 points less in each cell. Timing maps have not been adjusted from what I think is stock.  I did smooth out some of the bumps in the middle and top end, but nothing in the idle areas. (Message edited by Greg_E on May 28, 2012) | |||
| Greg_e |
OK, it goes beyond just idle. Anytime I crack the throttle up the engine bogs until I roll off a little. If I roll into it slowly no issues. I managed to fix the off idle part by increasing the WOT enrichment all the way up to 150 after trying several other values to arrive here. But higher RPM areas still bog down pretty bad so I need some help to fix this. here are screen captures of the fuel maps, ignition maps, and the other map page, also a zip of the eeprom. I think I'm missing some basic understanding of how the throttle enrichment operates in the different rpm regions so if anyone would like to explain what I can try next.      1050_2003.zip for the eeprom file, this is a stock 2003 ECM with obviously most of a custom tune. Again helping to understand what is happening would be welcome. (Message edited by Greg_E on May 28, 2012) (Message edited by Greg_E on May 28, 2012) | |||
| Xoptimizedrsx |
Greg, I'll look into your file, However, what pipe and filter do you have? I' will do some changes and email you the file once I get your email address. if you use tunerpro RT you can get to more tables and adjust more things. I can use both since I have a few ecms on hand and I can load from one program and fetch in another to get the file format needed. | |||
| Xoptimizedrsx |
This is a modified version of what you posted Try this version on the bike. note the timing change may require the tps to be back off a little once warm to 1000 rpm. Load then reset TPS after tps is reset fetch it from the bike and save it so your saved file holds the correct TPS values. If you dont do this each time you mod this file and load it you will have to reset the tps. Your WOT numbers seem really high for an XB9 in the upper RPM area... Although, I dont know if this is a stock bore or big bore build.
| |||
| Greg_e |
Mike, Thank you! I'll give it a try sometime tomorrow. Here is the configuration: Stock airbox with snorkle removed. K&N filter XB12 throttle body and injectors. Stock heads and valves (and stock cams) 1050 big bore kit with approximately 10.5 compression ratio. 2003 XB9 header 2003 stock XB9 muffler. I did smooth those numbers in the maps a little bit so they are not completely datalogged. Mostly there were a few holes in the curves so I added fuel to those low spots. Runs great and pulls like crazy if I roll into the throttle, way harder than when I bought it. If I crack it 1/4 or 1/2 way suddenly it bogs, twist all the way to wide open and the bog is less but still not completely gone. Whack it open, let it bog, close it a little and off I go. Whack it at idle and no bogging with what I was able to make so stop lights were not a problem, but up above about 2500rpm and whack it open and it bogs. There is something fundamental that I'm not grasping, hopefully I can get a better handle after I analyze the eeprom you made for me. I wish I understood this as well as you do. | |||
| Xoptimizedrsx |
that map I posted will help this issue. It may need more adjusting, however, the data that needs to be adjusted is not available in ecmspy. I can do it in Tunerpro, then load the file to a ecm and fetch it back out.This will save the changes with the correction in ecmspy file format for you. Now only if I had a few ddfi3 ecm versions. Mine is only a buezd. I may have it moved to a bue2d... Xopti | |||
| Greg_e |
That eeprom said it was not valid, it was larger than than the eeprom I pulled out of the ECM, wondering if the changes you just mentioned might have been the reasons. | |||
| Xoptimizedrsx |
yep, when a lot of changes are made it will do that with the old ecmspy. If you try it a second time it normally goes in... It is made from that file I downloaded from above. just open it and take notes on the maps and stuff I changed. then edit into yours, it will do the same thing and refuse to burn at first. My 2003 ecm does it as well on my xb9 if I use ecmspy. However, if I use Tunerpro RT it does not do that. | |||
| Greg_e |
It's pretty clear that I'll need to move to TunerPro and just figure it out. | |||
| Xoptimizedrsx |
see the new Lite T-pro post and the setup Video... It is a one stop program to do it all IMO... | |||
| Greg_e |
My goal is to get this running well, then put a MAP sensor in and set it back up. |
