SEPST tuning for dummies
#21
01-19-2017, 11:46 AM
Stage III
Join Date: Jan 2017
Location: Westminster CO
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#22
03-27-2017, 06:15 PM
Novice
Join Date: Jul 2015
Location: michigan
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Denver Dave. Thanks for the well written step by step instructions. I just got started yesterday and I need a little more clarification. I'm all good up to step #38 but I'm uncertain about step #39. My first question is should I be using the data from the "Smart Tune" that's located in the same directory as (“Working”, “Last Saved”, “Original” and “Smart tune”) into the upper half or should this info come from the "Smart Tune" folder directly above this folder?
Also, just to see if I was on the right path, I tried to record some data without riding the bike. The .hdx files were created and saved just fine, but when I imported them as in step #40 and clicked generate, the program displayed an empty chart, all zeros in the table. FYI, the working tables were populated with data. Is this simply because there was no load?
Thanks,
Mike
Also, just to see if I was on the right path, I tried to record some data without riding the bike. The .hdx files were created and saved just fine, but when I imported them as in step #40 and clicked generate, the program displayed an empty chart, all zeros in the table. FYI, the working tables were populated with data. Is this simply because there was no load?
Thanks,
Mike
#23
03-28-2017, 08:47 AM
#24
04-13-2017, 04:17 AM
updated url
I take none of the credit for this great write-up but will vouch that it took a rather daunting task and made it damn easy. All this info came from Foxster at http://www.harley-davidson-hangout.c...une-sepst.html
http://www.harley-davidson-hangout.c...e-with-a-SEPST
#25
06-10-2020, 04:21 PM
Looking forward to putting this info to use. I recently purchased a 2015 Road Glide Special that has a Screamin Eagle Stage 1 intake, V&H Power Duals Head pipes and V&H Oversized 450 Raider slip-ons. the bike also came with the SEPST and the correct cables to plug into the bike.
The previous owner told me he tuned it after installing everything, but I'm still getting a lot of decel popping. Not that I mind, but it seems excessive, especially coming home from work at 2 in the morning.
But my biggest concern is at times it will nearly stall out and sounds like its gasping for air (almost a backfire through the "carb" without the pop) after sitting at a traffic light when I first roll on the throttle after getting a green light. It just came out of service with the dealer for 25k mile and they installed new plugs as well.
The previous owner told me he tuned it after installing everything, but I'm still getting a lot of decel popping. Not that I mind, but it seems excessive, especially coming home from work at 2 in the morning.
But my biggest concern is at times it will nearly stall out and sounds like its gasping for air (almost a backfire through the "carb" without the pop) after sitting at a traffic light when I first roll on the throttle after getting a green light. It just came out of service with the dealer for 25k mile and they installed new plugs as well.
#26
06-11-2020, 06:13 AM
#27
06-11-2020, 02:00 PM
Road Master
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My12dynaglide (05-01-2022)
#28
07-16-2020, 07:36 PM
Seasoned HDF Member
#29
05-01-2022, 10:15 AM
Intermediate
Need help with tuning it says file not compatible with ucu
I recently changed my cams on my 2012 wide glide 103 . I put the s&s 583 set in the bike . Afterwards I hooked up tje tuner found a tune close to my set up saved it went to refresh it and it told me that tje file I chose was not compatible with my ecu can anyone help me figure out how to load this map tje map I chose was 2010-2013 Touring
configuration 1690 stage 2 se 255
components:
-se air cleaner or heavy Breather
- se 255 cams p/n 25638-07
- race exhaust
configuration 1690 stage 2 se 255
components:
-se air cleaner or heavy Breather
- se 255 cams p/n 25638-07
- race exhaust
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