Sportster Models 883, 883 Custom, 1200 Custom, 883L, 1200L, 1200S, 1200 Roadster, XR1200, and the Nightster.
Sponsored by:
Sponsored by:

Help with p0122 code throttle position sensor

Thread Tools
 
Search this Thread
 
Old Jan 9, 2017 | 05:19 PM
  #1  
Matthew Valinsky's Avatar
Matthew Valinsky
Thread Starter
|
Intermediate
Joined: Dec 2016
Posts: 39
Likes: 0
From: Arlington Tx
Default Help with p0122 code throttle position sensor

I have a 09 iron 833. And my engine light came on with the code of p0122 for the throttle position sensor. I buy a new one install it and the light goes off. I leave it on for about 5 min than the code and the light comes back on. Did I do something wrong skip a step? What can I do to fix it. Thanks
 
Reply
Old Jan 9, 2017 | 05:31 PM
  #2  
cvaria's Avatar
cvaria
Supporter
10 Year Member
Liked
Loved
Community Favorite
Joined: Sep 2012
Posts: 12,367
Likes: 2,215
From: Tallahassee, Florida
Supporter
Default

Originally Posted by Matthew Valinsky
I have a 09 iron 833. And my engine light came on with the code of p0122 for the throttle position sensor. I buy a new one install it and the light goes off. I leave it on for about 5 min than the code and the light comes back on. Did I do something wrong skip a step? What can I do to fix it. Thanks
clean your throttle body and adjust/lube your throttle/idle cables. did you clean your TPS connections with e.contact cleaner?



unlikey cause but, clean contacts are goooood
 

Last edited by cvaria; Jan 9, 2017 at 05:33 PM.
Reply
Old Jan 9, 2017 | 05:44 PM
  #3  
Matthew Valinsky's Avatar
Matthew Valinsky
Thread Starter
|
Intermediate
Joined: Dec 2016
Posts: 39
Likes: 0
From: Arlington Tx
Default

I didn't clean anything what exactly was I suppose to clean. The instructions the dealer gave me didn't say I should clean anything
 
Reply
Old Jan 9, 2017 | 05:56 PM
  #4  
cvaria's Avatar
cvaria
Supporter
10 Year Member
Liked
Loved
Community Favorite
Joined: Sep 2012
Posts: 12,367
Likes: 2,215
From: Tallahassee, Florida
Supporter
Default

Originally Posted by Matthew Valinsky
I didn't clean anything what exactly was I suppose to clean. The instructions the dealer gave me didn't say I should clean anything
the terminal(wire end) you plugged your TPS into (again, likely not the cause) and your throttle body... behind your air cleaner.





the part may not have been bad, just dirt/oil and build up in the throttle body, causing the sensor to throw bad readings. i'm pretty sure you didn't install the TPS incorrectly, that would take some serious effort to mess up.
 

Last edited by cvaria; Jan 9, 2017 at 06:06 PM.
Reply
Old Jan 9, 2017 | 05:59 PM
  #5  
Matthew Valinsky's Avatar
Matthew Valinsky
Thread Starter
|
Intermediate
Joined: Dec 2016
Posts: 39
Likes: 0
From: Arlington Tx
Default

So just Uninstall the sensor clean the inside and lube it up? That should fix it? And if not?
 
Reply
Old Jan 9, 2017 | 06:10 PM
  #6  
cvaria's Avatar
cvaria
Supporter
10 Year Member
Liked
Loved
Community Favorite
Joined: Sep 2012
Posts: 12,367
Likes: 2,215
From: Tallahassee, Florida
Supporter
Default

Originally Posted by Matthew Valinsky
So just Uninstall the sensor clean the inside and lube it up? That should fix it? And if not?
no no, unplug the wire. clean contacts. no need to remove the tps.

throttle body is more labor intensive.

do you know how to clear your codes?
 
Reply
Old Jan 9, 2017 | 06:15 PM
  #7  
Matthew Valinsky's Avatar
Matthew Valinsky
Thread Starter
|
Intermediate
Joined: Dec 2016
Posts: 39
Likes: 0
From: Arlington Tx
Default

Yeah I already cleared the codes and it came back. How would I clean the throttle body? I didn't clean that
 
Reply
Old Jan 9, 2017 | 06:31 PM
  #8  
cvaria's Avatar
cvaria
Supporter
10 Year Member
Liked
Loved
Community Favorite
Joined: Sep 2012
Posts: 12,367
Likes: 2,215
From: Tallahassee, Florida
Supporter
Default

Originally Posted by Matthew Valinsky
Yeah I already cleared the codes and it came back. How would I clean the throttle body? I didn't clean that
throttle body cleaner and a tooth brush

you will not find that above or this stuff below in the service manual:













wiggle test, lol
 

Last edited by cvaria; Jan 9, 2017 at 06:38 PM.
Reply
HD Forum Stories

The Best of Harley-Davidson for Lifelong Riders

story-0

8 Best Harley-Davidson Motorcycles Ever

 Pouria Savadkouei
story-1

10 Worst Harley-Davidson Motorcycles Ever

 Pouria Savadkouei
story-2

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

 Verdad Gallardo
story-3

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

 Verdad Gallardo
story-4

Harley-Davidson Reveals Super Cool Cafe Racer Concept

 Verdad Gallardo
story-5

Engraved Rebellion: Inside Bundnerbike's Glam Rock II

 Verdad Gallardo
story-6

10 Motorcycles You Should Never Buy

 Joe Kucinski
story-7

10 Things Harley-Davidson Needs to Fix in 2026

 Verdad Gallardo
story-8

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

 Verdad Gallardo
story-9

The Best and Worst Harley-Davidson Moves of 2025

 Verdad Gallardo
Old Jan 9, 2017 | 06:45 PM
  #9  
Matthew Valinsky's Avatar
Matthew Valinsky
Thread Starter
|
Intermediate
Joined: Dec 2016
Posts: 39
Likes: 0
From: Arlington Tx
Default

Okay so where exactly should I connect the multimeter to check ?
 
Reply
Old Jan 9, 2017 | 07:01 PM
  #10  
Matthew Valinsky's Avatar
Matthew Valinsky
Thread Starter
|
Intermediate
Joined: Dec 2016
Posts: 39
Likes: 0
From: Arlington Tx
Default

Also my throttle gets stuck at times could that have anything to do with it
 
Reply



All times are GMT -5. The time now is 02:29 PM.

story-0
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-1
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-2
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-3
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-4
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-5
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-6
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-7
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-8
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
story-9
The Best and Worst Harley-Davidson Moves of 2025

Slideshow: A clear-eyed look at what actually worked for Harley this year, and what quietly undermined its progress.

By Verdad Gallardo | 2025-12-29 17:10:48


VIEW MORE