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.

Have spark, no fuel delivery, new ECM

Thread Tools
 
Search this Thread
 
Old Sep 21, 2010 | 09:59 AM
  #1  
vikemaster's Avatar
vikemaster
Thread Starter
|
Intermediate
Joined: Nov 2008
Posts: 39
Likes: 5
Default Have spark, no fuel delivery, new ECM

My Thundermax ECM went out on my 04 Road Glide. I had no spark. I put a stock ECM in, now it starts up right away but stops running right away like it is getting no fuel. FI fuse is good. I hear the fuel relay fire up when I turn the switch on which seems to pump the fuel once to start the engine. Should I be able to just plug this ECM in and go or do I have to have something done by a Harley tech. before it will start? I have the TSM in that doesn't have the alarm or need a password. It seems like maybe the ION sense signal is not getting to the system relay. Any info or suggestions appreciated.
 

Last edited by vikemaster; Sep 21, 2010 at 10:09 AM.
Reply
Old Sep 21, 2010 | 11:28 AM
  #2  
KBFXDLI's Avatar
KBFXDLI
Big Kahuna HDF Member
Joined: Feb 2006
Posts: 23,881
Likes: 34
From: USA
Default

Didi you have the stock map flashed into the ECM after install?
 
Reply
Old Sep 21, 2010 | 11:50 AM
  #3  
vikemaster's Avatar
vikemaster
Thread Starter
|
Intermediate
Joined: Nov 2008
Posts: 39
Likes: 5
Default

No, I sure didn't. Sounds like that would be it
 
Reply
Old Sep 21, 2010 | 12:18 PM
  #4  
RA51's Avatar
RA51
Road Master
15 Year Member
Liked
Joined: Jul 2007
Posts: 786
Likes: 4
From: Beech Island, SC
Default

When you say you put a stock ecm in the bike. Is it the ecm that came with the bike new or one you just purchased for the bike. Sounds like you need to do the ecm learn for the module.

http://www.harley-performance.com/password-learn.html
 
Reply
Old Sep 21, 2010 | 12:45 PM
  #5  
ColdCase's Avatar
ColdCase
Road Warrior
Joined: Apr 2009
Posts: 1,360
Likes: 4
Default

Security systems issues could cause this but also if you lost connection to the crank sensor, either by a bent pin, broken wire you can also get this symptom. The Ecu starts things up but gets no indication the bike is running so shuts every thing down.
 
Reply
Old Sep 21, 2010 | 01:54 PM
  #6  
ultraclassic03's Avatar
ultraclassic03
Intermediate
Joined: May 2008
Posts: 26
Likes: 0
Default

I beleive the new ECM has to be "married" to the bike with the proper info so it knows what it is it has to do.
 
Reply
Old Sep 21, 2010 | 02:00 PM
  #7  
nevil's Avatar
nevil
Seasoned HDF Member
15 Year Member
Liked
Loved
Community Favorite
Joined: Jul 2008
Posts: 9,281
Likes: 1,139
From: southeast PA
Default

Did you put the stock O2 sensors back in?
 
Reply
Old Sep 22, 2010 | 09:53 AM
  #8  
vikemaster's Avatar
vikemaster
Thread Starter
|
Intermediate
Joined: Nov 2008
Posts: 39
Likes: 5
Default

Thanks for all the tips. I think you are right about mating the ecm to the bike. Everything else checks out good like the crank pos. sensor, continuity etc. Thanks again to all
 
Reply
HD Forum Stories

The Best of Harley-Davidson for Lifelong Riders

story-0

7 Surprising Harley-Davidson Products that Are Not Motorcycles

 Verdad Gallardo
story-1

8 Best Harley-Davidson Motorcycles Ever

 Pouria Savadkouei
story-2

10 Worst Harley-Davidson Motorcycles Ever

 Pouria Savadkouei
story-3

Killer Custom's Jail Break Is The Breakout That Refused to Blend In

 Verdad Gallardo
story-4

Crazy Bunderbike Build Looks Amazing, But Is It Impossible to Ride?

 Verdad Gallardo
story-5

Harley-Davidson Reveals Super Cool Cafe Racer Concept

 Verdad Gallardo
story-6

Engraved Rebellion: Inside Bundnerbike's Glam Rock II

 Verdad Gallardo
story-7

10 Motorcycles You Should Never Buy

 Joe Kucinski
story-8

10 Things Harley-Davidson Needs to Fix in 2026

 Verdad Gallardo
story-9

Southpaw Super Glide: A Left-Hand-Drive 1979 Harley FXE Built to Fit the Rider

 Verdad Gallardo
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
lwrd81
Ignition/Tuner/ECM/Fuel Injection
5
Aug 8, 2017 12:42 PM
lwrd81
Ignition/Tuner/ECM/Fuel Injection
3
Aug 4, 2017 09:44 PM
Brad223
Ignition/Tuner/ECM/Fuel Injection
9
Oct 20, 2010 12:50 AM
ranster_99
Softail Models
2
Sep 19, 2008 06:49 PM
Vengeance
Ignition/Tuner/ECM/Fuel Injection
25
May 22, 2008 02:20 PM




All times are GMT -5. The time now is 05:46 PM.

story-0
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-1
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-2
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-3
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-4
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-5
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-6
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-7
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-8
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
story-9
Southpaw Super Glide: A Left-Hand-Drive 1979 Harley FXE Built to Fit the Rider

Slideshow: Graeme Billington's left-hand-drive Shovelhead is as much about problem-solving as it is about classic Harley form.

By Verdad Gallardo | 2025-12-30 11:27:08


VIEW MORE