Will a 2009 FX Nytro ECU work on a 2014 FX Nytro

[Cubby's RX-1]

The 2008 to 2011 ECU part number is 8GL-8591A-00-00 and my 2014 Nytro part number is 8GL-8591A-20-00 and is only available from Japan. Can I use the older ECU in the 2014??? I heard a rumor that the part number change was because of the improved heated grips???

 

[MrSled]

The 2008 to 2011 ECU part number is 8GL-8591A-00-00 and my 2014 Nytro part number is 8GL-8591A-20-00 and is only available from Japan. Can I use the older ECU in the 2014??? I heard a rumor that the part number change was because of the improved heated grips???

I would try it. It could be how the ECU handles the grips and warmers. I would think worst case they wont work and it throws a code.

 

[Mooseman]

Wasn't there another change regarding cold oil pressure, usually resulting in an oP message in the speedo on later years?

 

[MrSled]

Wasn't there another change regarding cold oil pressure, usually resulting in an oP message in the speedo on later years?

Yea there could be. Maybe old to new is not as easy as new to old CDI.

 

[grizztracks]

I do believe the single thumb and handlebar warmer switch on the left was updated. A separate thumb warmer switch was added to the right throttle block like the other Yamaha models. With the single rocker switch in the older models there were two control signals sent to the ECU. One for the hand warmer loop and one for the thumb warmer loop. The 2014 Nytro having two separate switches allows for the warmers to be controlled up and down individually (no looping) which requires two signals from each switch for a total of four control signals to the ECU instead of the previous two. So if you install a 2014 ECU the warmers wouldn't work without adding the other switch and wiring them properly to the ECU. If not wired properly there's a possibility of blowing the ignition fuse.

Also, the 2014 runs an oil pressure sensor and an oil pressure switch similar to the SR Viper. Previous Nytros only had a single pressure switch so this would also need to be addressed to keep the ECU happy.