Hurricane Gap closed loop tuning

[snowdust]

I used to turn the key on and let it sit a minute or two before cranking then my AFR gauge had time to heat up the sensor. I also think its good to let it flash until its warmed up. Then you know you have good closed loop control. Will be interesting to see the long term use of this product because I always had O2 sensor issues and at $80-100 replacement yearly was getting old. I love closed loop and will be doing so on my Motec apex but fingers crossed the O2s hold up over a year of riding, hopefully multiple years.

I had the same experience on my Apex. I couldn't keep the O2 sensor working for more that ~200 miles. I finally gave up (and quit spending money on it) since I used it to set up my nitrous and had the fuel level set where I needed it. I let it warm up every time etc. Hopefully this setup lasts much longer as you said.

 

[justinator]

All my tuning components on my 2019 XTX LE have been purchased from Hurricane and I have been more then pleased so it made sense to purchase the Gap closed loop tuning from Hurricane as well.

I already had a Gap Flasher, the SS Stock and Perf Muffler tune bundle, Dash Flash, Data Logging, Launch Control, and plug and play AFR module so I just needed to purchase the closed loop download.
The process was simple and Dave called me to confirm the details.

After I downloaded the new flash to my Gap flasher I just had to plug the Gap Flasher into my sled and using my iphone Gap App I reflashed the ECU. Everything went smoothly and after the Ecu flash was complete I started the sled and everything was normal except I had a SD-24 code flashing. The code flashed for approx 15-20 sec then disappeared. I shut down the sled and restarted and the code repeated for the same time then disappeared again. I wasn't overly concerned as the code always cleared itself but I have never had a code on my sled before so I called Hurricane.

Here's what Dave told me.

SD-24 is an O2 sensor code that has always been in the Sidewinder ECU but never activated by Yamaha because the Sidewinder in stock form does not have an O2 Sensor. Because the closed loop upgrade needs the O2 sensor to control the AFR Hurricane has activated the SD-24 O2 sensor code that was already dormant in the factory ECU.

Clever!

When I was starting the sled the ECU was sending the SD-24 code because the O2 sensor had not yet heated up and as soon as it did the code went away so obviously not an issue.

Importantly, if I were to get an SD-24 code while riding the sled it would indicate an O2 sensor failure that would need to be addressed ASAP.

I am more then impressed!

Do you know if gap will be releasing an update for our phones that will show the amount of fuel being added or pulled? On TD's video you could see it on the dashboard pulling or adding fuel in a percentage format and Ben was able to adjust the target afrs as well. I dont have this on my phone app and gap doesnt have any new updates available for the iphone. Maybe they have the update for android already? I figured it would be nice to see what its doing and could possibly help diagnose a sled issue down the road.

 

[1nc 2000]

Any more info on this?

 

[sideshowBob]

When my 2019 Winder ,with the closed loop, is flashing the SD-24 code on initial startup the reverse/forward function works normally.

 

[1nc 2000]

Hopefully more people will check their sled and chime in with the results and model year.

 

[justinator]

Mine goes into reverse while the sd 24 code is flashing. I tried it just now.

 

[1nc 2000]

I reloaded my flash and my reverse works with sd-24 code showing now.
I will go back and edit my earlier post.
Sorry for the confusion.