Spit and sputter problem help
I have a 2009 road king police edition 103 air filter headers slip ons the whole 9 yards about six months ago it started to sputter between 2800 and 3100 rpms in all gears except for sixth starts to sputter for lack of better words almost a misfire .. so I have gotten lots of information from lots of people and tried several different things I changed fuel filter and pump the map sensor the crank sensor the tuner change the map on the tuner the coil spark plug wires checked charging voltage while running its at 14.4 V when I am driving it at the said 2800 rPMs. Now here is what has me really confused if you ride it like you were dragracing the thing doesnt miss a beat or sputter at all but when you are at cruising speed and in the said RPM range it sputters then give it another 100 to 200 RPMs and it clears right up anybody had this happen ? The only thing that I havent changed is the induction module that controls the throttle position sensor the stater and the voltage regulator and ECU.
Any suggestions would be great as I would really like to make Sturgis this year :-)
thanks in advance
Soooo. This is my first post here been following this forum for a while now some good info out here so here goes hopefully someone has ran across this before ..
I have a 2009 road king police edition 103 with stage 1 air filter, headers,and slip ons the whole 9 yards. Six months ago it started to sputter between 2800 and 3100 rpms in all gears except for sixth, it starts to sputter for lack of better words almost a misfire? I have gotten lots of information from lots of people and tried several different things here is what I have done so far....changed the fuel filter and pump ,the map sensor, the crank sensor ,the tuner ,have also changed the map on the tuner, the coil, spark plug wires ,checked charging voltage while running , its at 14.4 V when I am driving it at the said 2800 rPMs. Now here is what has me really confused ...if you ride it like you were drag racing the thing doesnt miss a beat or sputter at all but when you are at cruising speed and in the said RPM range it sputters then give it another 100 to 200 RPMs and it clears right up anybody had this happen ? The only thing that I havent changed is the induction module that controls the throttle position sensor .the stater and the voltage regulator and ECU.
Any suggestions would be great as I would really like to make Sturgis this year :-)
thanks in advance
Sorry I did change the plugs also i did forget to put that in there Im at a loss
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Did you check for any codes....?
Is the tuner a piggyback or flash tuner.... who supplies the maps?
Did the problem start after the Stage I mods were added 6 months ago? Or did start running poorly 6 months ago, but that was awhile after the stage I mods were done?
Any service/repair/mods done just before it started running poorly?
Do you have the ability to do a compression and/or leak down test....?
Several things come to mind, but I can't give an educated guess without more information...
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Did you check for any codes....?
Is the tuner a piggyback or flash tuner.... who supplies the maps?
Did the problem start after the Stage I mods were added 6 months ago? Or did start running poorly 6 months ago, but that was awhile after the stage I mods were done?
Any service/repair/mods done just before it started running poorly?
Do you have the ability to do a compression and/or leak down test....?
Several things come to mind, but I can't give an educated guess without more information...
I did also add Andrews 48H cams but it was running good after all the mods I have had stage one in there for two years. I have a power vision pro tuner on there which actually flashes the ECM and I got my mail directly from Dino jet I do not have the ability to do a compression test or a leak down but I do have the ability to start testing stater and voltage regulator probably tomorrow I checked my fluid because everybody says the primary fluid smells electrically burnt if the stater is going out but the primary just smells like gear lube not burnt at all I am going to systematically start checking the electrical system battery voltage regulator stater I can just jump into the stater wires and hopefully its putting out the proper voltage I will have to look that up if I cant figure it out I will just have to be at the mercy of the dealer
Last edited by soulpatch; Jul 22, 2019 at 07:16 AM.









