| Author | Message | |||
     Ferocity02 |
I've had dual oxygen sensors on my bike for a few weeks now. I put a stock narrowband sensor in the front header as well. I did this so I could tune each cylinder using MLV and VE Analyzer. Now I know since I'm using NB sensors that I'm not going to get a great tune, but I'm looking for something a little better than the race maps that have been giving me trouble for so long. I would datalog each cylinder and accordingly created new maps and loaded them into the ECM, then switched cylinders. I only got two runs done on each cylinder before I noticed possible problems. Everytime, VE Analyzer would lean out the high RPM values above 1900 RPM, they are now much leaner than the race maps and the bike is feeling fluffy up there. It also added a TON of fuel pretty much in the rest of the map, including idle(which I will change later). Overall, VE Analyzer added 280 points to the front map, and 614 to the rear!!! It noticeably killed my gas mileage by ~5mpg. However, the bike doesn't surge, sputter, miss, crap out at all anymore. I'm afriad if I keep going it's just going to keep leaning out the high RPM range and richen everywhere else. Attached is my Excel file that shows the race and new maps for the front and rear, as well as the differences and some totals. Check it out and let me know what you think. Thanks!
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| Ferocity02 |
Here is a text file also if you can't open the Excel version.
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| Xl_cheese |
I did the same thing. Results are very similar to yours. Lean out the openloop area and richen up the CL area. Riching up the CL area will in itself result in closed loop being leaner. The AFV will drop. Adding on top MLV leaning it out I decided I didnt like it and went back to stock with a lil tweaking down low.
(Message edited by xl_cheese on August 27, 2008) | |||
| Xl_cheese |
Did you use the "hard" change or "normal" I used the hard setting and did more logs than I have fingers. Did you also lock in the AFV to 100? Look at my idle settings. Try it out on your idle and tell me what you think? Both front and rear were tuned to give an ego corr of 100 while in idle. For me it's as smooth as it can get with no more coughing on take off. (Message edited by xl_cheese on August 27, 2008) | |||
| Ferocity02 |
It was set to normal. I considered doing hard but I figured it would just take longer to get the same results if it was truly going to converge to the optimum fuel map. The AFV was locked to 100 during all of the logging/tuning. I have yet to unlock it. I may do that today and see where it goes. | |||
| Mr2shim |
Nice info there guys, I ended up tweaking my stock map to get rid of the popping and pinging. Worked out pretty well I think. AFV is constantly between 100 & 105. |
