Tuner
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Novice
Joined: Mar 2023
Posts: 18
Likes: 8
From: New York
Tuner
I just bought a 2 into 1 exhaust for mt 2013 street glide. It will replace the system that the previous owner installed. I purchased a FP3 tuner to go along with the new exhaust. The instructions show the FP3 getting pluged in behind the left side cover. There does not seem to be any connectors under the cover and there is a existing FuelPak tuner plugged in under the seat. In assuming that the new FP3 will get plugged into under the seat after I remove the existing FuelPak. Am i correct on this and the instructions are incorrect about the FP3 gong under the side cover. Thanks for any help.
Thread Starter
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Novice
Joined: Mar 2023
Posts: 18
Likes: 8
From: New York
I realize that the new turner will replace the existing one. I was curious as to whether the existing tuner is in the correct location, the FP3 instructions clearly show the tuner being installed behind the side cover not under the seat. Is it possible that there are two locations where any tuner could get installed? I would think not and that these tuners are linked to the onboard ECM and there would only be one possible connection point? Could the existing tuner possibly be plugged into something it shouldn't be?
Grand HDF Member
Joined: Apr 2010
Posts: 3,590
Likes: 1,151
From: Brandon,Fl
I realize that the new turner will replace the existing one. I was curious as to whether the existing tuner is in the correct location, the FP3 instructions clearly show the tuner being installed behind the side cover not under the seat. Is it possible that there are two locations where any tuner could get installed? I would think not and that these tuners are linked to the onboard ECM and there would only be one possible connection point? Could the existing tuner possibly be plugged into something it shouldn't be?
Stellar HDF Member
Joined: Mar 2015
Posts: 2,951
Likes: 1,001
From: Winnipeg
I know on mine and I think many the diagnostic port is behind the left cover. You usually just detach it from its holder and plug in the fuel pack or powervision etc. it doesnt need to stay plugged in unless you want to. maybe the existing one had enough cable length that it was left connected and placed under the seat.
Last edited by Weeboy1; Apr 2, 2023 at 07:21 AM.
Grand HDF Member
Joined: Jul 2007
Posts: 3,740
Likes: 8,536
From: Bates County MO
The original Fuelpak (sounds like you already own, post a pic to let us see) was an interceptor device, and plugged into the ECM connector. Intercepted/modified signals to/from the ECM.
The new FP3 is a flash tuner, and plugs into the DLC (data link connector) under the left side cover.
You may be able to dial in the bike with the existing FP, and return the FP3.
https://www.fuelpakfi.com/fplookup_l...modelx=touring
The new FP3 is a flash tuner, and plugs into the DLC (data link connector) under the left side cover.
You may be able to dial in the bike with the existing FP, and return the FP3.
https://www.fuelpakfi.com/fplookup_l...modelx=touring
Last edited by rigidthumper; Apr 2, 2023 at 08:01 AM.
Stellar HDF Member
Joined: Jun 2019
Posts: 3,269
Likes: 3,715
From: oxford, pa
so, hold on, you discovered that you have an existing FP3 on the bike? why would you replace it? connect to it via bluetooth and see if it functions as intended, if it does, send the new back. Did I miss something here? or it an older FuelPak?
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Stellar HDF Member
Joined: Mar 2015
Posts: 2,951
Likes: 1,001
From: Winnipeg
The original Fuelpak (sounds like you already own, post a pic to let us see) was an interceptor device, and plugged into the ECM connector. Intercepted/modified signals to/from the ECM.
The new FP3 is a flash tuner, and plugs into the DLC (data link connector) under the left side cover.
You may be able to dial in the bike with the existing FP, and return the FP3.
https://www.fuelpakfi.com/fplookup_l...modelx=touring
The new FP3 is a flash tuner, and plugs into the DLC (data link connector) under the left side cover.
You may be able to dial in the bike with the existing FP, and return the FP3.
https://www.fuelpakfi.com/fplookup_l...modelx=touring
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Seasoned HDF Member
Joined: Sep 2007
Posts: 9,741
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From: Danbury CT
If the original one is connected under the seat it is a Power Commander 3 or 5 which is piggybacked to the ecu. Remove it. The fp3 goes under the left side cover and plugs into the gray diagnostic port. Plug it in and connect to with Bluetooth to your phone app and then flash the new map in. Once you're done you could disconnect it as there's no need it to be there unless you want to connect your cell phone to your handlebars and look at the gauges and stuff like that.