I have a simple Stage 1 on my 10 Street Glide consisting of the Vance and Hines Pro Pipe, Fuel Moto modified Screaming Eagle air intake and the Fuel Moto preprogrammed PCV. The bike runs cool and has good performance and reasonable gas mileage. The only issue is a little decel popping which I know can be taken care of by adding fuel in some areas. So what would be the benefit of adding the additional Auto Tune Power Vision with this simple stage 1? Is it worth the money if I don't intend on doing anything more to this motor? Maybe Fuel Moto or iclick can chime in on this one? Thanks, Rick

 

Not sure about the Power Vision but I have the Auto tune with the PCV. With the base map I was given the bike runs real good and I am happy with it. After a tank of gas with the auto tune I can tell the bike still runs great but it runs smoother and my gas mileage improves. If it was me and I had the money I would invest in the autotune but if funds were tight I would not buy the autotune. No doubt the auto tune made a difference for me.

 

If you have money the Auto tune is worthwhile. I placed a PCV on my SG to adjust for the addition of a 2-1 pipe, and air cleaner. I tried a couple maps - one from Fuelmoto, and one from Dynojet. The bike ran Ok, but had a couple throttle positions / rpm that were not smooth.
After installing Auto tune the map corrections were wide spread throughout the map. More importantly the bike ran perfectly at all throttle positions / rpm.
I can not comment on Power vision, but the ability to flash is an nice option. I will probably give that a try on my wife's softail in the future. I have used Dynojet products for 10 years with decent results.

 

If minor decel popping is your only complaint changing tuners is not the solution. Decel pop is normally caused by a lean condition at 0% TP (throttle position), and adding fuel to those areas will usually help. Have you tried that? If not, do this: Determine what RPM the pop is occurring and add fuel to that area, about 5% at a time. E.g., if you hear it from 3500 down to 2000 rpm when you roll-off the throttle, add 5% to that range at 0% TP for both front and rear cylinders using your PCV software. You'll do that by launching the software while attached (USB) to the PCV and clicking on "Get Map". Once loaded, click on the two Fuel Adj. tables and alter the values as per above. Try that and get back to us on the result. If you don't like working in the software you could call Fuel Moto, describe the problem, and they could send you a reworked map.

Power Vision is not a true "auto-tune" device, mainly because it is a flash-based tuner and the stock ECM cannot negotiate wideband O2 sensors. "Auto Tune" is a term used to describe almost anything these days, but to me a real auto-tune device must at least be able to tune AFRs on the fly and across the entire operating range, and no flash-based tuner using the stock ECM can do this. The PCV with Auto-Tune can, but this won't help with decel pop since Dynojet doesn't recommend auto-tuning in the 0% column, mostly because of potential reversion issues. What PV will do is tune with the AT-100 auto-tune module by creating datalogs that are independently processed by PV Tune software, and that creates a tune based on that process. It will then run in open-loop (no O2 sensors) or you can change-out the WB sensors for the stock NB sensors, optionally do further tuning with them, and run in limited closed-loop mode (like stock) after that. It's a complicated process that works well, but it isn't for everyone. I think that unless you want to play on the wild side, keep your PCV and tweak it to your liking.

 

good reply iclick, your advice has helped my tuning of the PC-V, very easy as suggested.

 

so your saying that when i roll off to 0 throttle if its too lean i will get some decel popping, I always thought it would be the other way too much fuel no air, I have increased my fuel throttle back on injectors when I wind down now after seeing this Im wondering if richening the setting in decel enleanment is way to go , guess Ill have to try it,

 

Thanks iclick. I was pretty confident that I'd hear from you or Fuel Moto on this one. I am aware of the process to help with Decel popping. I just haven't gotten around to playing with it yet. Frankly, it isn't all that bad, and except for the minor decel popping, the bike runs great. I wasnt thinking of switching tuners. I was just wondering if auto tune added to the PCV was worth it in my case? I guess I confused auto tune with the new Flash based Power vision device.

 

I have a similar setup to yours on my bike. I was running the FM PCV and the bike ran great! But, I always wondered if there might be just a little more there or if I might get that little bit more in MPG. So I bought the Autotune to go with my PCV. All I can say is I feel it was money well spent. Bike runs even better. The FM Map was close but the Autotune put it right on the money for my bike. And will for your bike too. I figure some will say its a waist of money, but I know someday I'll put cams in or change something and the Autotune will do it's magic. Plus I put the switch in so I have the best of both worlds with the FM base map and my Autotune MPG map (thanks to iclick).

 

Thanks Q, I think I may seriously consider it.