2008 Dyna Wide Glide dies at stoplights
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Joined: Jan 2005
Posts: 67
Likes: 25
Yeah! I hear ya'.
I have a set of Dyna Manuals that I can immerse myself in if it comes to that.
Yep! The bike is bone stock except for a fancy speedo-tach unit. In addition to the check engine light, there is also a square yellow indicator that lights up with the fuel pump prior to start. Some say they can hear the fuel pump but at this stage of my game, I can't hear the pump. I do have the turn signal/fob security system.
Thanks Tom! I do have the manuals. That's where I read about checking codes without a diagnostic tool. So, unless I'm missing something, I have no codes.
Tom
I have a set of Dyna Manuals that I can immerse myself in if it comes to that.
There is no fuel pressure light nor a code for it.
When you key on, you will hear a apx 2-3 second run of fuel pump that a timer in ECM does.
Then when cranking after apx one turn of motor, ECM gets enough hits from crank sensor next to oil filter, it knows were pistons are and what cylinder do to a slight slow down so timing is established.
Then ECM turn on ignition and fuel pump. Pump runs all the time motor is running. In an event bike is dropped, a bank angle kill switch is in signal system that kills fuel pump.
Signal also monitors signal light bulbs and is the security if bike has one.
You said bike is stock. Does it have a performance tuner?
When you key on, you will hear a apx 2-3 second run of fuel pump that a timer in ECM does.
Then when cranking after apx one turn of motor, ECM gets enough hits from crank sensor next to oil filter, it knows were pistons are and what cylinder do to a slight slow down so timing is established.
Then ECM turn on ignition and fuel pump. Pump runs all the time motor is running. In an event bike is dropped, a bank angle kill switch is in signal system that kills fuel pump.
Signal also monitors signal light bulbs and is the security if bike has one.
You said bike is stock. Does it have a performance tuner?
Do a Google or favorite search engine search for how to check for codes on your year and model bike. When you check for codes it "may" show something.
Before you get all wrapped up in alot of suggestions. Check the simple things that have been mentioned.
A on-line manual may be available at the HD web site. Sorry, I don't have a link for you.
Tom
Before you get all wrapped up in alot of suggestions. Check the simple things that have been mentioned.
A on-line manual may be available at the HD web site. Sorry, I don't have a link for you.
Tom
Tom
Seasoned HDF Member
Joined: Mar 2010
Posts: 38,623
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From: Honah Lee
Interestingly what Bubba says.
My use to be old 04 if I started it in gear from a cold start would do that little lug fwd as it broke the oil stuck clutch drive and driven plates.
If it did that, it would mess with where the ECM thought the reference idle should be. Next stop, it would be idling 3 or 4 hundred too high. The only way to fix it was cut it off and and restart it.
I personally have never saw it go the other way however. If it did and was say dropping the idle to 600 or so, that's too low for a FI system to catch itself in transition or probably even to idle.
My 04 alway hunted at least 50 to 75 rpm due to the single pin crank of a two cylinder.
My use to be old 04 if I started it in gear from a cold start would do that little lug fwd as it broke the oil stuck clutch drive and driven plates.
If it did that, it would mess with where the ECM thought the reference idle should be. Next stop, it would be idling 3 or 4 hundred too high. The only way to fix it was cut it off and and restart it.
I personally have never saw it go the other way however. If it did and was say dropping the idle to 600 or so, that's too low for a FI system to catch itself in transition or probably even to idle.
My 04 alway hunted at least 50 to 75 rpm due to the single pin crank of a two cylinder.
Last edited by Jackie Paper; Nov 24, 2025 at 07:16 AM.
Intermediate
Joined: May 2024
Posts: 27
Likes: 4
From: Cold Lake
With low miles like that, it may have sat with old fuel in it. Maybe put some fuel injector cleaner in the tank. Take the bike on a good long ride and burn a couple tanks of high octane fuel through it.
Seasoned HDF Member
Joined: Dec 2005
Posts: 19,936
Likes: 8,036
From: poway
All I've done looking for codes is turned the key on and confirmed the check engine light came on for 3-4 seconds then went off and stayed off. Likewise is the fuel pressure light which comes on with key and run switch then goes out after 3-4 seconds. That's usually when I hit the starter.
Does this behavior rule out current active or stored codes and less than adequate fuel pressure?
Tom
Does this behavior rule out current active or stored codes and less than adequate fuel pressure?
Tom
Seasoned HDF Member
Joined: Dec 2005
Posts: 19,936
Likes: 8,036
From: poway
With low milage, fuel pressure is of concern. There is plenty of time for stuff to rot in the fuel tank.. Invest in a pressure gauge. I'd also check intake manifold sealing. Cleaning the IAC as stated may help..
Seasoned HDF Member
Joined: Sep 2008
Posts: 14,161
Likes: 11,252
From: San Diego, CA
All I've done looking for codes is turned the key on and confirmed the check engine light came on for 3-4 seconds then went off and stayed off. Likewise is the fuel pressure light which comes on with key and run switch then goes out after 3-4 seconds. That's usually when I hit the starter.
Does this behavior rule out current active or stored codes and less than adequate fuel pressure?
Tom
That engine light behavior says there are no codes, historic or active.
As Max said, you will get no indications from low fuel pressure.... You'll need a gauge to check that....
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Thread Starter
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Advanced
Joined: Jan 2005
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Interestingly what Bubba says.
My use to be old 04 if I started it in gear from a cold start would do that little lug fwd as it broke the oil stuck clutch drive and driven plates.
If it did that, it would mess with where the ECM thought the reference idle should be. Next stop, it would be idling 3 or 4 hundred too high. The only way to fix it was cut it off and and restart it.
I personally have never saw it go the other way however. If it did and was say dropping the idle to 600 or so, that's too low for a FI system to catch itself in transition or probably even to idle.
My 04 alway hunted at least 50 to 75 rpm due to the single pin crank of a two cylinder.
My use to be old 04 if I started it in gear from a cold start would do that little lug fwd as it broke the oil stuck clutch drive and driven plates.
If it did that, it would mess with where the ECM thought the reference idle should be. Next stop, it would be idling 3 or 4 hundred too high. The only way to fix it was cut it off and and restart it.
I personally have never saw it go the other way however. If it did and was say dropping the idle to 600 or so, that's too low for a FI system to catch itself in transition or probably even to idle.
My 04 alway hunted at least 50 to 75 rpm due to the single pin crank of a two cylinder.
Thanks to all!
Tom