Dyna wide glide surging, popping poor idle
Thread Starter
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Stage IV
Joined: Jun 2023
Posts: 4
Likes: 1
From: northumberland
Dyna wide glide surging, popping poor idle
Hi All,
new to the forum so just want to firstly say hello
bought my 1st Harley a few weeks ago - 2006 Harley Dyna wide
i have been experiencing problems for the last week and wondering if anyone can help?
when the bike idles it seems the RPMs seem to jump (like its hunting)
also when im now cruising with little throttle it will sometimes hesitate, surge and backfire.
if i accelerate hard all is fine, its only happening when holding a constant throttle or just a small amount
I have changed the TPS and the MAP sensor on the hope it sorts it but no joy, spark plugs look normal
pulled the fuel pump out the tank today to inspect but all looks good - ordered a fuel pressure regulator and new fuel filter today on the hope that it may be that
Any ideas anyone?
new to the forum so just want to firstly say hello
bought my 1st Harley a few weeks ago - 2006 Harley Dyna wide
i have been experiencing problems for the last week and wondering if anyone can help?
when the bike idles it seems the RPMs seem to jump (like its hunting)
also when im now cruising with little throttle it will sometimes hesitate, surge and backfire.
if i accelerate hard all is fine, its only happening when holding a constant throttle or just a small amount
I have changed the TPS and the MAP sensor on the hope it sorts it but no joy, spark plugs look normal
pulled the fuel pump out the tank today to inspect but all looks good - ordered a fuel pressure regulator and new fuel filter today on the hope that it may be that
Any ideas anyone?
Last edited by Hitmanherbert; Jun 17, 2023 at 09:05 AM.
Seasoned HDF Member
Joined: Dec 2009
Posts: 9,165
Likes: 1,910
From: Doghouse... mostly
Make sure that the small vaccuum hose it connected properly to the top of the throttle body or manifold and that it isn't split.
Last edited by OldEnuf2NoBtr; Jun 17, 2023 at 10:27 AM.
Thread Starter
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Stage IV
Joined: Jun 2023
Posts: 4
Likes: 1
From: northumberland
Haven't checked for intake leak - assuming i just let the bike idle and spray some WD-40 or use propane torch method
will also check hose on top of manifold
bike runs bad, its erratic
will also check hose on top of manifold
bike runs bad, its erratic
Last edited by Hitmanherbert; Jun 17, 2023 at 11:21 AM.
Thread Starter
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Stage IV
Joined: Jun 2023
Posts: 4
Likes: 1
From: northumberland
Yes checked for codes
says map sensor which I've changed also has a P0261 code, just checked around the front injector and there it is wet with what im assuming is fuel on the side if intake
think i will renew injectors and seals as to me now this is likely the problem
says map sensor which I've changed also has a P0261 code, just checked around the front injector and there it is wet with what im assuming is fuel on the side if intake
think i will renew injectors and seals as to me now this is likely the problem
Seasoned HDF Member
Joined: Sep 2008
Posts: 14,160
Likes: 11,249
From: San Diego, CA
Yes checked for codes
says map sensor which I've changed also has a P0261 code, just checked around the front injector and there it is wet with what i’m assuming is fuel on the side if intake
think i will renew injectors and seals as to me now this is likely the problem
It's always better, and cheaper, to diagnose a problem rather than to throw random parts at it hoping to fix it.....
You found a code related to the fuel injector, inspected it, and found a possible leak. IMHO..... That's the way to work towards a proper problem diagnosis.
I would still look closely at the fuel injector, and the o-ring that may be leaking.... I might even test the fuel injector itself... But if anything looks out of place, replacing that fuel injector would be money well spent....
NOTE: I recently had what I thought was a leaking fuel injector. Upon close examination, I found it was the MAP sensor seal that was leaking and marking the area around the fuel injector on the intake. I hope you used a new seal, and got a firm, snug fit with the seal when you replaced the MAP sensor...
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First thing to do is clean/check the IAC. ............Idle Air Control.
https://www.google.com/search?q=how+...hrome&ie=UTF-8
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