addVehicleUpgrade help

[Blinker.]

hello everyone ,

i've been working a while on addVehicleUpgrade to add nos to my Vehicle , everything is working fine with nos hybrid , when i changed to nos nfs , if i click 1 time and remove my hand of nos button , the nos will end..

i'm simply using :

addVehicleUpgrade(getPedOccupiedVehicle(localPlayer), 1010)  

i'm using also "race_nos2" resource to change nos state (hybrid/nfs)

thanks in advance

[Blinker.]

any help?