Any feedback on this fuel fix gizmo ?

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Finally received mine 13 days after ordering. ShiftTech is 1 state away from me. He ships via the cheapest UPS method and it's horrible.

Easy install. Was raining and I have roached slicks on the bike from the last track day, but it started easier and idled better.
 
Lol, united prankster service. Even worse for us in Canada, like most things.

 
I'm presuming the instructions are to plug it into the grey socket (air temp sensor) between the airbox and fuel tank and then mount the silver bullet somewhere away from the engine?
 
Sounds just like a new version of the Booster Plug, telling the motor the air temperature is lower than it really is? The BP works for some bikes/people but not all.
 
If the picture is anything to go with it might be even simpler than the booster plug. I would guess that it's either
  • A 3K@25C B=3950 Thermistor which is essentially identical to the original and just moves the air temp reading away from the engine
  • A 5K@25C B=3950 Thermistor which would drop the temperature the ECU thinks it's at by ~11C
If it's the latter, then it's trying to do a similar thing as a booster plug (but bypassing the stock thermistor entirely).

I just ordered the components and will test in a couple of weeks when they arrive. I think the connector they use isn't quite the right one either, it'll fit but won't latch. Total cost is less than $5 :oops:.
 
I would assume this is the same as a booster plug or what others have been making for years - the picture on the site just shows the resister and plug - I assume when you install this there is another harness that plugs into the air temp sensor harness and Y's it with a third plug to plug in the thermistor, seems a lot of Ducati guys use 2.5k Ohm Thermistors for 5% more fuel if this bike uses the same temp sensor. Any pics of the install, but guessing that is what is going on here, just a thermistor inline with the temp sensor adding 5% fuel by skewing the temp reading 10 degrees or so lower.
Here is a good technical description of how the Monster guys were doing it - It would cost almost as much to do it yourself getting the right plugs etc, I would just buy it, the price is good unlike boosterplug's pricing but if you want to understand it. https://www.ducatimonster.org/threa...take-temperature-sensor-to-reduce-afr.357761/
 
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I was way off, it is so much simpler even - here is a great video of the install, the ECU just uses the temp on the dash, this just replaces the sensor behind the headlight area with a new sensor that reads 20 degrees C lower. The ECU uses that- so your dash reading on temp will be way off but you will get more fuel.
 
8C (in the garage) to -10C on the road. No idea whether it'll even display lower than -10C? But for that cold then that's a massive change, like it's just a single 10K thermistor or close to. If so then the faked temperature will be below 10C all the way up to 40C.
 
His bike said 9C and went to -11c so 20c difference which is a lot, usually on other models they only dropped the temp 10C to pickup 5% fuel, but maybe the hyper is even leaner and needs a bigger difference to add the desired amount of fuel.
 
There are two air sensors on the bike Electrical Parts (#5) one at the front which this replaces and one that's in the intake. Maybe this one is just for the dash display 😜
 
It does seem odd to me that the intake air temp isn't what you should be manipulating - I agree that seems like it literally is just for the dash and isn't what you would normally manipulate to add fuel on older models it was the one in the intake/airbox.
 
I'm gonna call it, gotta be snake oil, placebo effect etc. The 950 has exactly the same two air sensors, and the booster plug uses the one in the air box. My guess is that at sometime (939 and before) it was in the front, then it needed to be moved into the airbox (Euro4?) and it was cheaper to add a second sensor than to create a new wiring loom (Ducati loves to re-use) to split and reconnect it to the dash. Also using the new sensor would've probably had people saying that the air temp displayed is wrong.
 
Mude said:
If the picture is anything to go with it might be even simpler than the booster plug. I would guess that it's either
  • A 3K@25C B=3950 Thermistor which is essentially identical to the original and just moves the air temp reading away from the engine
  • A 5K@25C B=3950 Thermistor which would drop the temperature the ECU thinks it's at by ~11C
If it's the latter, then it's trying to do a similar thing as a booster plug (but bypassing the stock thermistor entirely).

I just ordered the components and will test in a couple of weeks when they arrive. I think the connector they use isn't quite the right one either, it'll fit but won't latch. Total cost is less than $5 :oops:.
Click to expand...
Please share what you find with your experimentation!

thanks
 
Hypermono said:
Please share what you find with your experimentation!

thanks
Click to expand...
Will do. I reached out to Ducati a couple of ways, I should get a quick response from one person, but with the holiday season I'm not sure about the other.

Yesterday I tested unplugging the front sensor and starting the bike. There was a grey dash warning (and the air temp read '---') but that disappeared when I plugged it back in. Critically there was NO yellow engine check light, which I would've expected if the ECU is connected to this sensor. From what I know unplugging the real sensor will issue one, and it is difficult to get it to clear 'naturally'.

Tomorrow I'll hook it up to the OBD to see if the front sensor has any influence on any reading. I'll also look again at unplugging the sensor and see whether any error codes are/were logged. I'm also tempted to go and get a few hours maintenance time with it plugged at Ducati.

The parts are on the way, probably around a week.
 

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