My 92 sho has some ABS issues when i start the car the ABS light is off but when the light is off and i try to stop the brakes act like ABS is engaged.
When the light turns off i can stop just fine, the light is only off just after i start the car until i hit about 10 mph.

Im hoping its just a dirty sensor, anyone else had a similar problem?

Can't say I've had the problem, but dirty sensor sounds like a good guess to me. Anytime your SHO starts acting funny you can look towards sensors, if there's anyting they're known for it's sensor failure...