I have a 2013 Fat Bob with a cobra intake, and V&H big shots exhaust. I use the PV to auto tune the bike and it works well!
But?!
I've noticed that the bike doesn't hold the tune for very long? I keep needing to reflash the custom tune, after about a month or so??

It's almost like the bikes ECU is doing it's own adjusting to the tune and trying to return it to stock settings? Which makes the bike start to run rough.

Then I need to re-flash the custom tune and the bike runs great again!!

Anyone else have this experience? Is there a way I can stop this from happening? Or is flashing the tune periodocally something I'll have to live with????

 

You might want to contact the guys at Fuel Moto and ask them - sounds strange to me that it would do that as you have to do the whole bit of accepting the new flash, turn off the key to reset it....
I'd be interested in hearing a follow up after you talked to them and figured it out...

 

i'd be interested too since i just ordered a PC 5 from fuel moto, it will be here tomorow

 

I got an answer from Powervision. They said that the bike's ECU is adjusting the "Trim" and "fuel" settings not the tune itself. There's a way to turn that function off in the "tools" setting of the PV. I'll check it out when I get home later today.
Hopefully it's an easy fix and I won't have anymore issues.

 

follow

 

Did you do any autotuning and get VE tables as close as you can? If so I would think trim and fuel would not need to be adjusted, when in closed loop of course.

 

Glad they were able to help you - They are a great Company, I had an issue with the screen on my PV2, I sent it back on Thursday last week & I received a brand new replacement unit today under their warranty program, I can't remember the last time I had an issue with a product and had the pleasure of dealing with a great customer service company.

 

the only time i have seen a tune inside the ecm get corrupt was when I was forced to ride the battery almost dead because my stator had failed. Re- flashed once and that was it for me. Have you had your battery and terminals checked?

 

just get a TTS put it on a dyno and be done with it and ride

 

I am with Scott on this one, it could be a memory lost.
I don't think I understand your question, what do you mean by keep flashing ecm? It sounds strange to me. I never had problem with Power vision, not even a proper dyno tuned and she runs like a top. Thank to Fuelmoto