So I installed the Rinehart Xtreme true duals, Arlen Ness Big Sucker Stg 1 and a Power Commander V on my FLHXS.

I downloaded the only map I saw that was close to what I have.

My question is it has A LOT of decel pop and back firing just about every time I let off the throttle and every time I downshift. I love the Rinehart sound but the popping and backfiring is annoying! Is there anything I can do to get rid of it? I searched and some people say change the map to add fuel when the throttle is at 0%, etc etc. Not sure what I should do. I know I don't want to take it to the stealership for them to "diagnose" at $97/hr!

Any help would be appreciated!

 

I would do a quick check for air leaks at you new exhaust connections. Did you use your old exhaust gaskets or new ones? If not, it would have to be a map. You may be able to send an email to the tuner manufacturer with what setup you have.

 

I have had problems tuning the rinehart Extreme true duals on the 2014 motor. I added fuel and took away fuel and never got rid of all the decell popping. We put it on the dyno and got it fairly clean but still had problems. We then added a baffle in the front of the mufflers, and the added backpressure stopped the popping. So I am thinking these dont have enought back pressure for the motor. We had a second bike at the dyno with V&H powerdual and new CFR. They were simple to tune compared to the Extreme duals and made more power and torque.

 

If there isn't a leak then more than likely it's needs the extra fuel at Zero throttle.. I had a similar setup on my 08 Street Glide (96CI) and it to popped a lot on decel. I just added a little fuel to Zero Throttle (1st column) between 750rpm and 1500rpm and it solved the problem. I've attached a picture of the PC3 Map I used so you can see what I mean.

The original map I had, ran pretty rich in the cruising RPM range (2000-3000) and was only giving me about 36mpg. I leaned it out a little and was getting 40-42mpg after that. I was quit happy with the performance, it was right there when you twisted the throttle.
It wouldn't hurt to try it. and see if that's the problem.

 

Put 5 in the 0 and 2 columns from 1500 up on both front and rear. If that doesn't stop it go to 10. The only time these columns are in play is in deceleration and idle, but idle is below 1500. You can put 5 in the idle area also and will respond better.
I went ahead and created you a map that will work. It may need a little touching up. Can help with that too. One has less timing below 2000 as marked. May try it first then if ok you can try the other. Probably not much difference. Don't have a stock flash from PV or SEPST for 14 yet so don't know how much they are running.

 

Mine does the same thing, I do not have a clue how to program it, dealer did it all for me. Where do you find MAPS?

 

Same maps I sent in previous post will work for you.

 

How do you think this would work with a set of Street Cannons, decatted stock pipe and free flow a/c?

 

May need to lean it 3% or so all over. It should work fine. Now if had performance heads or cams would not work right. try it if it doesn't work right let me know and can adjust.

 

Thanks ke5rbd! I will try it this afternoon and see what it does!

Thanks again!