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.

Just a P0134 code

Thread Tools
 
Search this Thread
 
Old Aug 21, 2016 | 06:57 PM
  #1  
duner50's Avatar
duner50
Thread Starter
|
Stage III
Joined: Aug 2016
Posts: 3
Likes: 0
From: SoCAL
Default Just a P0134 code

Need a little help! I have an 08 ultra classic installed Big sucker II and a Fi2000r powerpro I get P0134 code. So I changed the o2 sensor same code bike hesitating and popping.Not sure what to do next I checked connection.
 
Reply
Old Aug 21, 2016 | 10:17 PM
  #2  
Doc 1's Avatar
Doc 1
Outstanding HDF Member
Joined: May 2007
Posts: 2,304
Likes: 31
From: Florida
Default

Originally Posted by duner50
Need a little help! I have an 08 ultra classic installed Big sucker II and a Fi2000r powerpro I get P0134 code. So I changed the o2 sensor same code bike hesitating and popping.Not sure what to do next I checked connection.
The code doesn't say the 02 sensor is bad, it's telling you the AFR is too rich or too lean by reading the voltages. Example; if the 02 report voltage, in your year bike, is above 800mv its running rich, if it is below 600mv it's too lean. When the ECM see's the voltages out of normal pramiters it will through a code. Changing the 02 sensor won't change the AFR.....your settings on the Cobra are wrong.
Doc
 
Reply
Old Aug 24, 2016 | 10:15 AM
  #3  
duner50's Avatar
duner50
Thread Starter
|
Stage III
Joined: Aug 2016
Posts: 3
Likes: 0
From: SoCAL
Default

The problems is there are no setting on the cobra it is a continuously variable tuner.
 
Reply
Old Aug 24, 2016 | 10:18 AM
  #4  
Doc 1's Avatar
Doc 1
Outstanding HDF Member
Joined: May 2007
Posts: 2,304
Likes: 31
From: Florida
Default

Originally Posted by duner50
The problems is there are no setting on the cobra it is a continuously variable tuner.
Then get rid of it and get a GOOD tuner.
 
Reply
Old Aug 26, 2016 | 02:52 PM
  #5  
duner50's Avatar
duner50
Thread Starter
|
Stage III
Joined: Aug 2016
Posts: 3
Likes: 0
From: SoCAL
Default

I removed the BIG SuckerII and the Tuner no codes! but I still get a misfire and popping at midrange. I've got new plugs.MAP sensor?
 
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Newfie
Milwaukee Eight (M8)
7
Apr 28, 2019 08:29 AM
kch112654
Ignition/Tuner/ECM/Fuel Injection
4
Oct 13, 2018 07:25 AM
Highgrade
Dyna Glide Models
6
Oct 1, 2015 06:57 PM
RustyCage
Dyna Glide Models
6
Aug 10, 2015 12:21 PM
Deuce55
Touring Models
12
Sep 23, 2014 07:11 PM




All times are GMT -5. The time now is 03:47 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