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Old May 26, 2021 | 11:37 AM
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Hello, I'm new here and I looked through some of the archives and haven't seen the solution. I have a 2010 ultra classic stage 2 with tw6-6 cams and v&h fp3 tuner. The motor bogs down, misfires and spends most of the time running on just the back cylinder. I have changed the coil, plug wires, plugs, intake gaskets and cleaned the injectors, new front o2 sensor, fuel pump/filter/regulator/fuel lines, throttle position sensor and crank position sensor. I have a couple thousand mile trip coming up in 5 weeks and need to figure this out. I am stumped and could use some advise, please
 
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Old May 26, 2021 | 12:02 PM
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Originally Posted by Furryduck
Hello, I'm new here and I looked through some of the archives and haven't seen the solution. I have a 2010 ultra classic stage 2 with tw6-6 cams and v&h fp3 tuner. The motor bogs down, misfires and spends most of the time running on just the back cylinder. I have changed the coil, plug wires, plugs, intake gaskets and cleaned the injectors, new front o2 sensor, fuel pump/filter/regulator/fuel lines, throttle position sensor and crank position sensor. I have a couple thousand mile trip coming up in 5 weeks and need to figure this out. I am stumped and could use some advise, please
How long has it been doing this, when did it start? Was it right after the cam install?

Jim
 
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Old May 26, 2021 | 12:09 PM
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I just did a double take on your name. I thought the second "U" was an "I" for a second. LOL!
 
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Old May 26, 2021 | 12:12 PM
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I did the cam swap and added the fp3 and it ran beautiful for about 500 miles, I rode home from work one night,started the bike the next day the issue was there.
 
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Old May 26, 2021 | 12:16 PM
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Sounds like you may have lost the map. Download it again. That happened to me once on my 07 RK.
 
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Old May 26, 2021 | 12:19 PM
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I will give it a try, thank u
 
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Old May 26, 2021 | 09:35 PM
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Got adjustable push rods? If you do, give them a check.
 
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Old May 27, 2021 | 03:50 AM
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The pushrods are stock, I will do a compression test this afternoon. I flashed the map and it didnt change, so I sent an email to v&h fp3 tech support with all the information. I have not heard back yet, I will call them after I do the compression test
 
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Old May 27, 2021 | 06:18 AM
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Have you checked for error codes ?

https://www.fuelmotousa.com/p-29661-...M%20XL%201200C
 
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Old May 27, 2021 | 07:17 AM
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There was a error code for the front o2 sensor, I do not recall what the number was, I replaced the o2 sensor and rode the bike roughly 7 miles and checked the codes and now it has a p1353, no combustion in the front cylinder.
 
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