'06 Dyna - First SERT use and map creation
I had planned to really study the data prior to making any map changes, but it clouded up and looked like rain. I did a quick playback and looked for any spark knock retard. I was very surprised to find none. The wind was picking up, so I decided to do a minor map modification and see how it worked.
On the '06 Dynas, you can just alter the mv settings for the O2 sensors in order to richen up your mixture. I open up the basic Stage I map (141NX001-A0.MT6) and went into the "Closed Loop Bias Table". I bumped up all the tables in the 70 and 80 kPa columns to 622. All other tables in the 1500 rpm - 3500 rpm ranges were bumped up two increments to a setting of 506. Saved the map with a new name and hooked the laptop back up to the bike.
I'd never uploaded a map before, so my fingers were crossed. Everything went smooth. I fired up the bike and headed out. I only got to ride it about 10 miles, but man what a difference. The bike pulled like it's never pulled before. This is how it's supposed to be!!! It's still not perfect and I think even more fuel might help, but I'm going to take it slow and do one change at a time. Got to wait on nice weather now, but I'm real happy with the SERT. This thing makes tuning a snap.
If you've been considering a SERT, then go for it. It's not difficult to use at all. There is an intimidation factor because of fear of the unknown, but once you get used to using it, you'll really like it.
Calibration # 32: 2006 Shotgun / Shorty Dual Exhaust with O2 Sensors
Configuration: 1450 SE A/C & Mufflers
File Name: 141NX001-A0.MT6
Components:
⢠SE Air Cleaner and Breather Kit P/N 29440-99C
⢠SE II Slip-Fit Mufflers P/N 80448-03 or 80258-99A
Ok.. here is what I started with. In advanced mode of the tuning screen, this is the "Closed Loop Bias" table. The numbers in the tables represent the mv for the O2 sensors.

Here is the same screen after I changed the settings. You can see that I increased a bunch of cells by two increments. Increasing these numbers causes the ECM to richen up the mixture for the RPM range on each row. It uses the data sent from the sensors to determine the amount of fuel to add to the mix.

Like I said, I could only ride a few miles, but it felt like a different bike. Listening to the exhaust note, it sounded a lot smoother too. Power was way up and running through the gears, the front end even got light. I still think there is room for improvement though. If it ever gets warm again, I'll work on it some more. Once I get it dialed in, if anyone wants a copy of the map, just ask. But fair warning here - I am no expert and this is my first time to use a SERT.
Can you give a run down on exactly what you are doing?hat program, where you got instructions, did they come with the program etc.
I would seriously appreciate it.
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Just kidding bro, just jealous. I want a sert, but will have to wait until after deployment to afford it. One big question......did it eliminate your surging in 2nd gear at about 25 MPH?
The Best of Harley-Davidson for Lifelong Riders
Dude, yer gettin a SERT!


