My '90 90q20v has a clicking sound from the wheel. The clicks seem to match the revolution of the wheel. You'll hear it with window down at low speed. At high speed you won't hear it because of the higher frequency and noise. I suspect it may have something to do with ABS or some kind of senor. Has anyone got any idea or experience with this ? Solomon Ngan '90 90SQ 20V / '93 100s