Definitely stay away from the SEPST, unless you want to take it to the dealer and have them put it on a dyno.
Tuner problems?
Tuner problems?
Posted this in tech forums but there seems to be low traffic there so I'm posting here too:
Hey all, 2009 fxstb with derby sucker intake, d&d fat cat pipes, power commander V auto tuner. Been having problems lately using too much fuel. Took my plugs out and they smell like gas, so I'm assuming it's getting too much fuel? My mileage has gone down too. I have SE plugs and wires on order that will be picked up tomorrow. Wonder if that will help, or if I should ditch the auto tune and buy a SERT?
Hey all, 2009 fxstb with derby sucker intake, d&d fat cat pipes, power commander V auto tuner. Been having problems lately using too much fuel. Took my plugs out and they smell like gas, so I'm assuming it's getting too much fuel? My mileage has gone down too. I have SE plugs and wires on order that will be picked up tomorrow. Wonder if that will help, or if I should ditch the auto tune and buy a SERT?
Road Master
Joined: Oct 2008
Posts: 970
Likes: 19
From: Philippines
It's my guess that new plugs and wires will not solve your problem but it's good practice to eliminate simple items before moving on to more complex components. Check the gap on your plugs. Insure that your air filter is clean. Using your service manual, test your coil.
I believe you're running rich due to the tune provided by the Power Commander. If you decide to change tuners, Stay Away from the SERT! Look in to Dynojet's Power Vision. Great device!
I believe you're running rich due to the tune provided by the Power Commander. If you decide to change tuners, Stay Away from the SERT! Look in to Dynojet's Power Vision. Great device!
Stellar HDF Member
Joined: Mar 2012
Posts: 2,008
Likes: 596
From: Columbus, OH
IMO more than likely what your seeing with the plugs are a result of the problem and not the cause, unless the plugs are way past their change interval. Start with the simple stuff, clean air filter element, fresh plugs and take a ride. When you get back pull the plugs and take a look at the plugs, sill heavy gas smell or even wet? then start to trouble shoot for an overfueling condition. Fuel Pressure Regulator, TPS or MAP sensor readings could be off. are there any codes? Check engine lights? I'm not familiar with that tuner, but is there away to hook up a laptop or any other kind of reader to look at a data list to see what is actually going on in real time? Something could be causing the injectors to overfuel. It's possible that the electronics in your tuner are breaking down and not keeping your fuel where it needs to be, but this would be one of the last places I would look for the problem.
If you get stuck, call or email the guys over at Fuel Moto be sure to tell them your a member of this forum, their reputation for customer service on this forum is top notch
If you get stuck, call or email the guys over at Fuel Moto be sure to tell them your a member of this forum, their reputation for customer service on this forum is top notch
Last edited by Fat11Lo; Jun 23, 2015 at 12:48 PM.
1st Gear
Joined: Apr 2015
Posts: 5
Likes: 0
From: Thomson, Ga
X2 for Fuel Moto
I have a 2011 Fat boy, wife has a 2013 Fat boy, both have a fuel moto micro tuners. They both run great, I called them, told them all the mods on each bike plus what I bought from them. The rest was plug and play. There maybe better tuners out there but they are the best for the money. IMHO
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Devil's Advocate
Joined: Jun 2010
Posts: 2,070
Likes: 36
From: Alberta, Canada
Over fueling is used to cool the engine. I have the Power Vision, the bike had a heavy gas smell until I auto tuned it a few times to tune it in. Now the smell is gone and my mileage went up.
If you have any backfiring, adding more fuel in the tune usually stops it.
If you have Auto Tune, run it a few times to dial it in.
If you have any backfiring, adding more fuel in the tune usually stops it.
If you have Auto Tune, run it a few times to dial it in.
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Stage III
Joined: Jun 2015
Posts: 3
Likes: 0
From: Miami , Florida
injection will not spray fuel after installing Fuel Micro EFI tuner
please help I have a 2008 RK FLHPI and I have CFR KO slip ons and running stock air filter. After I got my fuel moto EFI micro tuner I installed it just like the instructions say but yet I get no status light and the bike has power and sounds like it wants to turn on but I it doesn't and the status light still doesn't come on. please help 
Devil's Advocate
Joined: Jun 2010
Posts: 2,070
Likes: 36
From: Alberta, Canada
please help I have a 2008 RK FLHPI and I have CFR KO slip ons and running stock air filter. After I got my fuel moto EFI micro tuner I installed it just like the instructions say but yet I get no status light and the bike has power and sounds like it wants to turn on but I it doesn't and the status light still doesn't come on. please help
If that fails, call Fuel Moto, they have great customer service.
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JustLoafin
Ignition/Tuner/ECM/Fuel Injection
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Jun 12, 2007 12:48 PM