Effects problem

When I add a custom smokesystem to any of my aircraft, it appears the X value doesn't work 
For example:
[SMOKESYSTEM]
smoke.0=3.45, -10.50, 5.30, fx_sparks
No matter how much I change the first value (3.45), the effects stays where it is on the X-axis.
I was wondering if anyone had the same problem, or a solution?

For example:
[SMOKESYSTEM]
smoke.0=3.45, -10.50, 5.30, fx_sparks
No matter how much I change the first value (3.45), the effects stays where it is on the X-axis.
I was wondering if anyone had the same problem, or a solution?