Okay, so you guys will have to forgive me since I'm relatively new to Harleys, having come from the sport bike scene.

I searched the crap out of this but couldn't find anything conclusive. I have a 2013 Harley Forty Eight, and I recently purchased a V&H Fuelpak FP3. I have heard some people remove their O2 sensors in the process and eliminate them altogether (though I'm not sure how this is accomplished without throwing a code), and others keep their O2 sensors.

My question is, is one way better than the other?

On my other bike (an Aprilia RSV4), when you add the official Aprilia Race ECU, it allows you to completely eliminate the O2 sensor without throwing any codes at all, since the Race ECU doesn't require it.

With the FP3, I know it's not an actual ECU replacement, but a piggyback unit. However, I'm curious if removing the O2 sensors is something that people advise, or advise against.

Thanks in advance!

 

not sure on the fuel pack ,I use the power commander so it requires 02 sensor removal, it should come with instructions if it is a closed/ or open loop system

 

I own the FP3 and it does not require you to remove your O2 sensors.

 

I think I was mainly just curious if there was any benefit to removing the O2 sensors?

 

The FP3 is made for 2014 and newer Sportsters and Touring. The Dynas and Softails have had it since 2012. I did read a thread about eliminating O2 sensors but it involves a map with no ability to auto tune. You need to contact V&H about this.

 

You DO NOT want to remove the O2 sensors if using the Fuel Pak 3. With the old fuel pak you could but DO NOT do it with the Fuel Pak 3. You need those to properly auto tune

 

Got it! I want the auto tune feature, so definitely going to keep the O2 sensors then!

 

My question is will the FP3 actually work on your 2013 Forty Eight? My understanding is they only fit 2014 and newer Sportsters with the Canbus system.

 

They have a new FP3 that works with pre-2014 Sportsters.

 

Install it as per the instructions, then you can play with it later, when you've looked into this a bit more!