General Harley Davidson Chat Forum to discuss general Harley Davidson issues, topics, and experiences.
Sponsored by:
Sponsored by:

No check engine light but codes

Thread Tools
 
Search this Thread
 
Old May 2, 2024 | 12:38 PM
  #11  
Burbur2's Avatar
Burbur2
Thread Starter
|
Grand HDF Member
5 Year Member
Liked
Loved
Community Favorite
Joined: Aug 2017
Posts: 3,586
Likes: 889
From: Nowhere
Default

Originally Posted by rideonva
Sorry, I've thought you were doing "traditional" breathing and removed air filter back plate.
I did now I have trans vent and since this seems not to do anything I added AC vent and yes this one works fine as I see small drop of oil on this hose already even after few hrs of riding.
 
Reply
Old May 2, 2024 | 12:44 PM
  #12  
Burbur2's Avatar
Burbur2
Thread Starter
|
Grand HDF Member
5 Year Member
Liked
Loved
Community Favorite
Joined: Aug 2017
Posts: 3,586
Likes: 889
From: Nowhere
Default

Originally Posted by rideonva
Why ride it some more if you already have codes ? Battery is an easy check, however you have 22, kind of too early for battery to fail. Check terminal connections, grounds.
The reason I decided to clear codes and ride it some more is because I have so many codes that I think it was caused by weak battery in the first place as some of these are kinda major codes based on what we see so far. I did alarm siren install recently and disconnected the fuse and plug to ECM to get the module in place so I just hope this could be also part of these codes for previous “no power” as well as “watch dog” code as yes I initially I didn't disconnect things proper way so my siren went on even with fuse out as this is safety feature of the system.

Maybe riding some more wasn't smartest idea but thought I would give it a shot since I didn't have “official” check engine light activated.
 

Last edited by Burbur2; May 2, 2024 at 12:47 PM.
Reply
Old May 2, 2024 | 12:49 PM
  #13  
rideonva's Avatar
rideonva
Stellar HDF Member
Joined: Jul 2021
Posts: 2,099
Likes: 2,107
From: NoVA
Default

Originally Posted by Burbur2
The reason I decided to clear codes and ride it some more is because I have so many codes that I think it was caused by weak battery in the first place as some of these are kinda major codes based on what we see so far. I did alarm siren install recently and disconnected the fuse and plug to ECM to get the module in place so I just hope this could be also part of these codes for previous “no power” as well as “watch dog” code as yes I initially I didn't disconnect things proper way so my siren went on even with fuse out as this is safety feature of the system.

Maybe riding some more wasn't smartest idea but thought I would give it a shot since I didn't have “official” check engine light activated.
Troubleshooting for your P2100 suggest to check your ECM connections (2nd step after turning IGN off). That's where I'd look.
 
Reply
Old May 2, 2024 | 01:10 PM
  #14  
Burbur2's Avatar
Burbur2
Thread Starter
|
Grand HDF Member
5 Year Member
Liked
Loved
Community Favorite
Joined: Aug 2017
Posts: 3,586
Likes: 889
From: Nowhere
Default

Originally Posted by rideonva
Troubleshooting for your P2100 suggest to check your ECM connections (2nd step after turning IGN off). That's where I'd look.
Thank you for the tip I just checked it just to make sure. I run diagnostic sequence again and so far all clear but I will need to ride it so hopefully that was it.
 
Reply
Old May 3, 2024 | 05:30 AM
  #15  
lp's Avatar
lp
Seasoned HDF Member
20 Year Member
Liked
Loved
Community Favorite
Joined: Jan 2006
Posts: 11,476
Likes: 3,001
From: Charleston, SC
Default

Originally Posted by Burbur2
I did now I have trans vent and since this seems not to do anything I added AC vent and yes this one works fine as I see small drop of oil on this hose already even after few hrs of riding.
To check your setup, you should be able to suck air through the end of that vent hose without issue. If you can't, it's somehow blocked and will never work/vent.
You should not be able to blow air into the hose because of the check valve. That's how the head breathers work.
 
Reply
Old May 3, 2024 | 07:00 AM
  #16  
Burbur2's Avatar
Burbur2
Thread Starter
|
Grand HDF Member
5 Year Member
Liked
Loved
Community Favorite
Joined: Aug 2017
Posts: 3,586
Likes: 889
From: Nowhere
Default

Originally Posted by lp
To check your setup, you should be able to suck air through the end of that vent hose without issue. If you can't, it's somehow blocked and will never work/vent.
You should not be able to blow air into the hose because of the check valve. That's how the head breathers work.
Yes this is exactly how I check it yesterday
 
Reply
Old May 3, 2024 | 08:18 AM
  #17  
Burbur2's Avatar
Burbur2
Thread Starter
|
Grand HDF Member
5 Year Member
Liked
Loved
Community Favorite
Joined: Aug 2017
Posts: 3,586
Likes: 889
From: Nowhere
Default

Originally Posted by Rounders
Write the codes dowm. WTF is with this generation where everything is pictures? Why would you want to take the extra time, and why would I want to sift through a bunch of pictures?
The time it took, you could have googles.
This generation 😂 I am almost 50 years old. Write it down? Don't tell others what to do you are not my daddy. Why pictures? Because picture speaks 1000 words and is 5 times faster than write it down and more accurate? Does that work for you as explanation? And BTW you don't have to do anything related to this post if you don't want to, you can just scroll past this post and move on without pointless comment and no help anyway on the issue described. Have a good day.
 

Last edited by Burbur2; May 3, 2024 at 08:21 AM.
Reply
Old May 3, 2024 | 01:14 PM
  #18  
rideonva's Avatar
rideonva
Stellar HDF Member
Joined: Jul 2021
Posts: 2,099
Likes: 2,107
From: NoVA
Default

So was that not fully seated ECM connector, which was unrelated to vent modes mentioned in OP ?
 
Reply
HD Forum Stories

The Best of Harley-Davidson for Lifelong Riders

story-0

7 Times Harley-Davidson Chucked Tradition Out the Window

 Verdad Gallardo
story-1

7 Surprising Harley-Davidson Products that Are Not Motorcycles

 Verdad Gallardo
story-2

8 Best Harley-Davidson Motorcycles Ever

 Pouria Savadkouei
story-3

10 Worst Harley-Davidson Motorcycles Ever

 Pouria Savadkouei
story-4

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

 Verdad Gallardo
story-5

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

 Verdad Gallardo
story-6

Harley-Davidson Reveals Super Cool Cafe Racer Concept

 Verdad Gallardo
story-7

Engraved Rebellion: Inside Bundnerbike's Glam Rock II

 Verdad Gallardo
story-8

10 Motorcycles You Should Never Buy

 Joe Kucinski
story-9

10 Things Harley-Davidson Needs to Fix in 2026

 Verdad Gallardo
Old May 3, 2024 | 06:38 PM
  #19  
Dynamick's Avatar
Dynamick
Club Member
10 Year Member
Liked
Loved
Community Favorite
Joined: Feb 2013
Posts: 9,829
Likes: 8,737
From: Edmonton, Alberta
Riders Club Member
Default

Originally Posted by Rounders
Write the codes dowm. WTF is with this generation where everything is pictures? Why would you want to take the extra time, and why would I want to sift through a bunch of pictures?
The time it took, you could have googles.
WTF is with YOU, nimrod? As you're so fond of saying, if you don't like what's in the thread, change the channel.

And learn how to spell FFS.
 
Reply
Old May 4, 2024 | 06:21 AM
  #20  
Cap77's Avatar
Cap77
Seasoned HDF Member
5 Year Member
Liked
Loved
Top Answer: 1
Joined: May 2019
Posts: 5,894
Likes: 11,324
From: NE Ohio
Default

Originally Posted by Rounders
Write the codes dowm. WTF is with this generation where everything is pictures? Why would you want to take the extra time,.
LOL!!
I'm 66 Rounders, it's faster and easier than pen and paper, unless you're a clueless contrarian cueball, I guess


..L.T.A.

 
Reply



All times are GMT -5. The time now is 06:40 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