Erratic Idle, Almost Stall, Cough out Intake
Thread Starter
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Tourer
Joined: Sep 2009
Posts: 453
Likes: 9
From: Wherever, MI
Erratic Idle, Almost Stall, Cough out Intake
Hey Everyone,
1996 EGUCFI - 65,000 miles, Magnetti Marelli FI.
I will start the bike, engine light stays red for about 15 seconds and will go off. Bike will idle fine for a bit and will then start to idle erratically jumping from normal to about 1500...then dropping to 500 and almost stalling. Bike will sometimes stall or just stumble and then cough out the intake. Exhaust smells very rich.
Bike has a new fuel pump and fuel filter last season, have cleaned the sensors etc. Any ideas? Replace the sensors? Injectors?
I found another thread that had all of the same issues listed but never had a resolution posted. Oddly enough out of all the Harleys I have owned this is my 1st FI bike.
Appreciate any thoughts!!!
1996 EGUCFI - 65,000 miles, Magnetti Marelli FI.
I will start the bike, engine light stays red for about 15 seconds and will go off. Bike will idle fine for a bit and will then start to idle erratically jumping from normal to about 1500...then dropping to 500 and almost stalling. Bike will sometimes stall or just stumble and then cough out the intake. Exhaust smells very rich.
Bike has a new fuel pump and fuel filter last season, have cleaned the sensors etc. Any ideas? Replace the sensors? Injectors?
I found another thread that had all of the same issues listed but never had a resolution posted. Oddly enough out of all the Harleys I have owned this is my 1st FI bike.
Appreciate any thoughts!!!
Thread Starter
|
Tourer
Joined: Sep 2009
Posts: 453
Likes: 9
From: Wherever, MI
How do I pull those with a non digital odo? Based on flashes when in retrieval mode?
As in:
https://hdbitchin.com/index.php?topic=1426.0
As in:
https://hdbitchin.com/index.php?topic=1426.0
Stellar HDF Member
Joined: Feb 2007
Posts: 2,558
Likes: 280
From: Russellville, Arkansas
I believe you turn ignition on off three times. As for reading numbers
.I dont remember right off.
I agree ..get the historical code.
From the symptoms you describe ..
Make sure the Idle control motor is working, then check/reset cold and hot idles. Theres a great YouTube video showing the procedure.
Was the bike running great before you cleaned things?
I agree ..get the historical code.
From the symptoms you describe ..
Make sure the Idle control motor is working, then check/reset cold and hot idles. Theres a great YouTube video showing the procedure.
Was the bike running great before you cleaned things?
Thread Starter
|
Tourer
Joined: Sep 2009
Posts: 453
Likes: 9
From: Wherever, MI
I believe you turn ignition on off three times. As for reading numbers
.I dont remember right off.
I agree ..get the historical code.
From the symptoms you describe ..
Make sure the Idle control motor is working, then check/reset cold and hot idles. Theres a great YouTube video showing the procedure.
Was the bike running great before you cleaned things?
I agree ..get the historical code.
From the symptoms you describe ..
Make sure the Idle control motor is working, then check/reset cold and hot idles. Theres a great YouTube video showing the procedure.
Was the bike running great before you cleaned things?
Road Master
Joined: Jan 2019
Posts: 1,120
Likes: 901
From: Texas
Assuming you have no factory service manual...you really need one for a FI bike, especially. Numerous threads on this, use the search function.
But here you go... Turn on ignition.Leave it on.Turn on for 5 secs. and then turn off what I call the fuel pump switch. Do it again. The third time leave it on. You will get fast flashes which will then stop. Then you will get slow flash, either a 1,2,3, or 5, then a pause. Then you will get another series of slow flash. These 2 series of slow flashes will be your trouble code ...(a 3 and 3 will be 33). It may give another series of slow flashes that are different numbers which means more than 1 trouble code. If not, it will go back to the fast flashes, and then repeat the trouble code(s).
But here you go... Turn on ignition.Leave it on.Turn on for 5 secs. and then turn off what I call the fuel pump switch. Do it again. The third time leave it on. You will get fast flashes which will then stop. Then you will get slow flash, either a 1,2,3, or 5, then a pause. Then you will get another series of slow flash. These 2 series of slow flashes will be your trouble code ...(a 3 and 3 will be 33). It may give another series of slow flashes that are different numbers which means more than 1 trouble code. If not, it will go back to the fast flashes, and then repeat the trouble code(s).
Seasoned HDF Member
Joined: Apr 2011
Posts: 6,185
Likes: 2,134
From: W. Texas
"I will start the bike, engine light stays red for about 15 seconds and will go off"
Just curious
This bike has a Red engine light??
WP
Just curious
This bike has a Red engine light??
WP
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Road Master
Joined: Jan 2019
Posts: 1,120
Likes: 901
From: Texas
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Thread Starter
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Tourer
Joined: Sep 2009
Posts: 453
Likes: 9
From: Wherever, MI
I know, I know....but hey.....I can tear down a Shovelhead blindfolded.....so there's that.
Appreciate the info, I'll work on pulling the codes tonight.
