My caster is off on my passenger front side causing my car to drift to the right.

Left side Caster
2.9 deg

Right Side Caster
1.9 deg

Toe and Camber are zeroed out to spec.

i know that the caster is unadjustable on the rsx but what can i do to correct this? new front LCA? loosen and reposition subframe? if so how do i know how to move the subframe to get desired deg?

 

If nothing is bent, readjust the subframe by loosening the 4 bolts that hold it to the chassis, then towards the back of the subframe (rear of the car) there are two alignment holes you can use to pry the subframe in the direction you want it. Basically pry the subframe forward on the right side to bring the caster up and hopefully it should equal out. You can use your fingers to of get a very rough measurement before you put the car on an alignment rack to get a final measurement.

Basically if your looking at the face of the RIGHT/PASSENGER wheel, stick your hand between the wheel well and the 9 o'clock position on the tire. Note how many fingers you have in the gap, 3-4, w/e it is. Then go to the other side (LEFT/DRIVER) of the car and do the same thing between the 3 o'clock position and wheel well. If you have the same gap on both sides of the car, put it on an alignment rack and take a measurement of caster, it should be closer then what it is right now. You can do the finger measurement thing before you adjust anything to get an idea on how much you moved the subframe.