PCV throttle calibration issue

[elfreako]

Hi All,

 

I've bought the Power Commander 5 and Auto Tune kit, and today have just installed only the PCV (ran out of time for the Auto Tune). I loaded a generic map just to see how it goes, but it's running way too rich. Smoke out the exhaust indicates that, and it wasn't happening all day yesterday before the install.

 

I have noticed an issue with the throttle position sensor, which I tried to calibrate by powering on the bike (but not turning it over), setting the left side to what the current voltage read, then turning the throttle all the way up and setting the voltage to the right. It did help, but I noticed a weird flat spot at around 22%. Even thou I turn the throttle on evenly and slowly, it will go up to around 22%, then nothing for a while (I still continue to turn slowly) until about 90% open (I'm guessing based on how far my wrist has turned the throttle), and then all of a sudden it goes fast to around 100% fully open. 

 

Best to have a look at the footage I recorded, and bear in mind that my wrist is slowly turning the throttle and the voltage is jumping around a bit. Also, if you turn up the volume loud you could hear a weird 'buzz'-like sound at near 90% open, which it seems is the give way area to where it goes fast to 100%.

 

Anyone have any thoughts on this I would love to hear them.

 

 

[elfreako]

For all those who care, and those who don't.... still have the same issue, even after doing what was advised by DynoJet. Which was to remove and reseat everything, including the PosiTap, and set the higher voltage to theirs on file, which is 4.3v. Regardless of this, it didn't change the flat spot in the middle. So this time I did what was recommended on the Power Commander site, started it up, idled for about 5min, clicked Reset, wound the throttle all the way and back down again and clicked OK. But, that made the 0% go out just a tad, so I set that by using the left cursor arrow in the app, again.

 

Now, I have noticed that if the engine isn't turned on, I get this flat spot, but when the engine is running and I rev it out, I will see an increase in throttle percentage. I guess the benefits on going to a Dyno place instead of revving it out in neutral. 

 

I have installed my Auto Tune as well and went for a spin to check that it works. Which, I'm glad to say it does, and I can tell by the trim it does throughout the throttle percentage limit. So my guess is that without the engine turning over, the readings won't update accurately.

 

My 2p