Ignition/Tuner/ECM/Fuel Injection Need advice on ignition issues? Questions about a tuner? Have questions about a EFI calibration or Fuel Injection? Tips on Engine Diagnostics, how to get codes, and what they mean. Find your answers here.

Tuner/Battery

Thread Tools
 
Search this Thread
 
Old Jul 1, 2009 | 12:57 PM
  #1  
badbag's Avatar
badbag
Thread Starter
|
Tourer
Joined: Jan 2008
Posts: 280
Likes: 7
From: Midwest
Default Tuner/Battery

Is it possible for a tuner to loose it's programming after a dead battery?

I didn't think so but my bilke is idling aweful rough after it happened.
 
Reply
Old Jul 1, 2009 | 01:30 PM
  #2  
rbabos's Avatar
rbabos
Banned
Joined: Mar 2007
Posts: 3,706
Likes: 7
From: Woodstock, Ont , Can
Default

Don't think so. It's flashed to a chip and retains it separately from battery power. If you are running a tmax then the initialize will need to be redone to set the iac for correct idle. This establishes the marriage between the mechanical iac device and the electronic control of the ecm.
Ron
 
Reply
Old Jul 2, 2009 | 07:43 AM
  #3  
mpmillion's Avatar
mpmillion
Tourer
Joined: Apr 2008
Posts: 341
Likes: 0
From: Ft Leonard Wood
Default

Had the same thing happen. Wife was playing with the bike and left it on without knowing it. I jump on and the battery is dead so I had to get a new one. I lost the map that was in the PCiii, quick fix even though at first I had no idea what happened.
 
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
seniorsuperglideE8
The Dyno Room
1
Sep 17, 2016 07:31 AM
martin10
Ignition/Tuner/ECM/Fuel Injection
1
Sep 5, 2014 11:09 AM
Tesla_HV
Ignition/Tuner/ECM/Fuel Injection
3
Apr 26, 2013 11:08 AM
HighLiner
Touring Models
12
Jul 2, 2012 09:13 PM
confused
Touring Models
3
Nov 20, 2008 07:33 AM




All times are GMT -5. The time now is 08:22 PM.

story-0
7 Times Harley-Davidson Chucked Tradition Out the Window

Slideshow: Harley-Davidson built its reputation on nostalgia, but every so often, the company took a hard left turn into the future.

By Verdad Gallardo | 2026-05-20 11:18:19


VIEW MORE
story-1
7 Surprising Harley-Davidson Products that Are Not Motorcycles

Slideshow: The bar-and-shield logo shows up on far more than motorcycles, some of the company's most unexpected products have nothing to do with riding.

By Verdad Gallardo | 2026-04-29 16:50:35


VIEW MORE
story-2
8 Best Harley-Davidson Motorcycles Ever

Slideshow: Not every Harley gets it right, but these are the ones that genuinely earned their reputation.

By Pouria Savadkouei | 2026-04-15 14:23:21


VIEW MORE
story-3
10 Worst Harley-Davidson Motorcycles Ever

Slideshow: From the troubled AMF years to modern misfires, these bikes earned reputations for reliability issues, questionable engineering, or disappointing performance.

By Pouria Savadkouei | 2026-04-01 20:01:09


VIEW MORE
story-4
Killer Custom's Jail Break Is The Breakout That Refused to Blend In

Slideshow: Killer Custom's "Jail Breaker" build focuses more on stance and visual aggression than mechanical overhaul.

By Verdad Gallardo | 2026-03-18 19:20:32


VIEW MORE
story-5
Crazy Bunderbike Build Looks Amazing, But Is It Impossible to Ride?

Slideshow: The Swiss custom shop has taken a Harley Softail and stretched it into something so long and low that it looks closer to a rolling sculpture than a conventional motorcycle.

By Verdad Gallardo | 2026-03-07 16:15:30


VIEW MORE
story-6
Harley-Davidson Reveals Super Cool Cafe Racer Concept

Slideshow: Harley-Davidson's new RMCR concept revives the café racer formula with modern hardware-and it may be exactly the reset the company needs.

By Verdad Gallardo | 2026-03-04 12:23:37


VIEW MORE
story-7
Engraved Rebellion: Inside Bundnerbike's Glam Rock II

Slideshow: A standard cruiser becomes an intricate metal canvas in the hands of a Swiss custom house known for pushing Harley-Davidson platforms far beyond their factory brief.

By Verdad Gallardo | 2026-02-24 18:19:44


VIEW MORE
story-8
10 Motorcycles You Should Never Buy

Slideshow: There is no shortage of great motorcycles to buy, but we would avoid these ten.

By Joe Kucinski | 2026-02-19 14:50:51


VIEW MORE
story-9
10 Things Harley-Davidson Needs to Fix in 2026

Slideshow: Harley-Davidson's challenges aren't abstract; they show up in dropping shipments, shrinking dealer traffic, and strategic decisions that aren't yet translating into growth.

By Verdad Gallardo | 2026-01-13 18:33:17


VIEW MORE