Engine starts and runs, but starts missing after a couple of miles. - Road Glide Forums
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post #1 of 13 (permalink) Old 09-14-2019, 12:12 PM Thread Starter
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Engine starts and runs, but starts missing after a couple of miles.

So Harmony, my 2012 FLTRU, starts up fine and runs good for a couple of miles, then starts missing out and bucking like a bronco. Found 1 diagnostic code: PC 1095 and pn# 382863-09a (best I remember on the latter #). No check engine light comes on. Owners manual suggests something with plugs,wires and coil,or fuel vent clogging. The local factory dealership is clueless and can't get it fixed. Anyone else had this happen? She has 31,650 miles apprx.
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post #2 of 13 (permalink) Old 09-14-2019, 03:25 PM
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Originally Posted by Forrest View Post
So Harmony, my 2012 FLTRU, starts up fine and runs good for a couple of miles, then starts missing out and bucking like a bronco. Found 1 diagnostic code: PC 1095 and pn# 382863-09a (best I remember on the latter #). No check engine light comes on. Owners manual suggests something with plugs,wires and coil,or fuel vent clogging. The local factory dealership is clueless and can't get it fixed. Anyone else had this happen? She has 31,650 miles apprx.
That code is an ABS code and has nothing to do with your issue. So since you took it to the dealer I assume they did change the plugs? If they did it could be plug wires or a list of other things. Have you ever changed the fuel filter? It could be a pin hole in the fuel line in the tank. It could be a clogged injector but I would say that's not the most likely cause.

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post #3 of 13 (permalink) Old 09-14-2019, 04:30 PM
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Harley had a batch of plugs that were bad a few yrs ago-the center wood break loose-when warmed up wood bounce up and down-took mine in for a flash tune after a little work,new plugs also-ran awful-took a week for Harley to trouble shoot the problem
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post #4 of 13 (permalink) Old 09-14-2019, 05:10 PM
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I have heard of an issue some sportsters had where it would run fine until the bike warmed up and it ended up being a bad coil. Was hard for some techs to diagnose because when they would test it cold, it would show good but when it got hot and things expanded it was really bad. Just a thought.
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post #5 of 13 (permalink) Old 09-14-2019, 05:28 PM
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I wouldn’t rule out the possibility of just getting a tank full of bad fuel. Happened to me once. Suddenly missing, smoke. Drained tank, refilled, ran a bit and all was fine. I’d change the fuel no matter what, just so it can be ruled out.
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post #6 of 13 (permalink) Old 09-14-2019, 10:31 PM Thread Starter
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I appreciate the feedback here and quick responses; it wasn't bad fuel (did that test 2x and no changes). The owner's manual suggestions are in line with most of these responses, along with a possible clogged fuel vent system, battery failing. I'll be taking her to an independent harley shop next Saturday; other bikers in my neck of the woods have shared similar experiences with the factory dealership here,so it's time for a change.
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post #7 of 13 (permalink) Old 09-15-2019, 08:41 AM
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What dealership is it?

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post #8 of 13 (permalink) Old 09-15-2019, 10:35 AM
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I assume that you meant to type C1095 for the code, which is a brake code.

First two things to check are reportage voltage from the ecm and fuel pressure. Rule them out first.

Any misfire should set codes. With one exception. Bad engine temperature switches tend to not set codes.

You can check that with a scan tool, just watch the sensor output as the scooter warms up. Past that, you need to narrow it down a little. Is it one cylinder or both that are misfiring. Again a scan tool is needed. Just run a data log and log at the 02 values. You can also take a look at spark voltages with a KV probe.


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post #9 of 13 (permalink) Old 09-18-2019, 12:20 PM Thread Starter
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The dealership was Benson Motorcycles in Muncie, In.
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post #10 of 13 (permalink) Old 09-18-2019, 12:22 PM Thread Starter
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Benson did a fuel pressure check on the computer and nothing amiss came up there. Not sure what cylinder is missing, but you damn sure feel it when it does. Like a pissed off bronco.
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