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.

Help

Thread Tools
 
Search this Thread
 
Old Sep 21, 2017 | 09:34 PM
  #1  
Andrew Anderson's Avatar
Andrew Anderson
Thread Starter
|
Novice
Joined: Sep 2017
Posts: 18
Likes: 0
From: Red mesa, az
Default Help

Need help with my fp3 tuner. When I auto tune the bike it puts it 14:1 ratio and my bike pops and hesatates
 
Reply
Old Sep 22, 2017 | 08:24 AM
  #2  
critter85's Avatar
critter85
Extreme HDF Member
Joined: Oct 2015
Posts: 17,219
Likes: 2,499
From: Eastern Kansas
Default

You could call Vance and Hines and tell them what kind of setup you have and they can’t send you a better tune.
 
Reply
Old Sep 22, 2017 | 04:37 PM
  #3  
dandrumheller's Avatar
dandrumheller
Road Master
Joined: Sep 2013
Posts: 1,091
Likes: 84
From: Southern Maine / Seacoast NH
Default

That's how auto tune works. It sets the afr the same across the chart, then watches the O2 sensors to calculate ve values/corrections.

Running rough during auto tune should be expected. Fill up some cells, flash, and see what happens.
 
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Bruce00
2014-2024 Touring Models
9
Jun 29, 2017 02:39 AM
paco12
Touring Models
6
May 29, 2017 10:53 PM
forever_lost
Ignition/Tuner/ECM/Fuel Injection
10
Sep 4, 2014 03:27 PM
Randall
Ignition/Tuner/ECM/Fuel Injection
2
Jun 18, 2013 10:32 PM
Bulldog2785
Sportster Models
6
May 27, 2011 07:25 AM




All times are GMT -5. The time now is 05:25 AM.

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