I have a little problem.. I asked TAC and was told I shouldn't have to mess with it, but if some of you are bored and wondering why the pico is showing no vibration when there is a vibration check this out, see if I'm a little nuts, lol.. Well we already know that answer so maybe just try this to amuse me..
On the second screen of NVH, Vehicle Information..
There is a tire correction factor.. I have seen the trucks I'm working on at either 1.030 or 1.040.. I swear I didn't touch the setting to make it that value, lol!!
Anyways.. I have a truck that has a bad vibration, showing some T1 but not as high as it should be if that's the vibration.. Center console shaking side to side pretty bad..
So if I turn on unknown vibrations and every other vibration t1-t4, p1-p4,E1-E4,etc and see what's high..
I have an unknown vibration pretty close to T1 in Hz but not in the range.. Also another unknown as well sort of around tire 2 ,all known vibrations on the left are under 10mg... so why is the center console shaking so bad? If I had a coffee in it I would be wearing it!!!
T1 listed below, same snapshot of data, just changing the correction factor on the 2nd screen and going back to thr 3rd and reading..
T1 9.14mg at 1.040
T1 17.5mg at 1.030
T1 28.0mg at 1.020
T1 39.0mg at 1.010
T1 55.5mg at 1.000
T1 58.0mg at 0.990
T1 55.9mg at 0.980
T1 49.6mg at 0.970
T1 40.2mg at 0.960
It also makes my T2 vibration go from being non-existant at 1.6mg at 1.040 go up to 14.5mg at 0.990.. Now if I go by that I have a T1 and a T2 vibration bad enough to chase..
See how it maxes out at just about 1.000, actually 9.990 is the highest, if that value is a multiplier for tire correction it would make sense that a tire with 10k miles on it would be slightly smaller, hence a value of 0.990 would be the most accurate? Where or why was it at 1.040? Who decides that value? I don't remember changing it and I swear the last truck I used the pico on had it set at 1.030
Anyone confused yet? I've asked this every time I call TAC for a vibration about this setting, I can hear the silence as I'm explaining this.. They don't actually use the software, for the most part they have no idea what I'm talking about,hopefully someone here does?
Have fun guys, enjoy your weekend!!!