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New sportster only firing on one cylinder

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  #31  
Old 03-04-2018, 03:24 PM
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Originally Posted by Dudepants
Hmm that might be a posibility. With my 04, the cps went bad and my bike was running like crap. What if you try cleaning off the sensor first to see if it makes a difference?

ill check it it out when I get home
 
  #32  
Old 03-04-2018, 04:14 PM
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The cam position sensor looked decent, wiped it down and replaced, no difference.

also I checked the on board diagnostics

P1354 - rear coil driver open / low

 

Last edited by Turbomunkey; 03-04-2018 at 04:16 PM.
  #33  
Old 03-05-2018, 12:50 PM
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Any chance it's the battery?
 
  #34  
Old 03-05-2018, 07:23 PM
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Originally Posted by Dudepants
Any chance it's the battery?
the battery should be good, it was kept on a tender by myself and previous owner. I will double check

update- as stated before, system was reduced to zero spark with installation of new ignition module. I brought it to the Harley dealership and explained the situation and they will attempt to test the part tomorrow and confirm if it is alright or in fact faulty from factory
 
  #35  
Old 03-06-2018, 09:50 AM
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Originally Posted by Turbomunkey


the battery should be good, it was kept on a tender by myself and previous owner. I will double check

update- as stated before, system was reduced to zero spark with installation of new ignition module. I brought it to the Harley dealership and explained the situation and they will attempt to test the part tomorrow and confirm if it is alright or in fact faulty from factory
Yeah, I'd be curious to know how old that battery is and if it's been load tested. I feel like i've read a few scenerios on this forum where people have had issues with a rough running bike because of battery that was old, etc.

Let us know what the dealer finds on that ICM, it does seem weird that it got worse with that installed.
 
  #36  
Old 03-06-2018, 10:03 AM
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Originally Posted by Dudepants
Yeah, I'd be curious to know how old that battery is and if it's been load tested. I feel like i've read a few scenerios on this forum where people have had issues with a rough running bike because of battery that was old, etc.

Let us know what the dealer finds on that ICM, it does seem weird that it got worse with that installed.
i will man. Thanks for the input !
 
  #37  
Old 07-23-2022, 08:49 PM
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Default What was the outcome?

My 2006 Sportster is doing the same thing.
I check everything you did. What was the problem?

k
 
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