My engine fx is not turning off

[PlasmaDynamics]

I dont know if the code is right but it should stop when no throttle is being applied. Also can you change the color of the fx from the stock options?

Code:

fx_exhaustFlame_blue = 0.0, -0.4, 0.0, 0.0, 1.0, 0.0, active

fx_exhaustLight_blue = 0.0, -0.4 0.0, 0.0, 0.0, 1.0, active

[Supernovy]

Change 'active' to 'running'. 'active' is old magic, 'running', 'engage', and 'disengage' are the new fx parameters.

AFAIK, you can't change the stock fx, but I haven't thoroughly checked.

[PlasmaDynamics]

Damn old ksp modding guides.

[KhaosCorp]

You cant change the color, but you could use combinations to get kinda same effect your after (maybe)

Not sure if you have come across this yet...but it may help:

http://forum.kerbalspaceprogram.com/showthread.php/35726-fx?p=450595#post450595