Make sure that the sender and reciever LED's are spotless, clean with a cotton bud in Nifty and then a dry cotton bud to dry. There are three in the supercharger assembly that goes across the ramp/slot.
Then do to the swich test and put a screwdriver in bewteen the sensors to see if they are opening and closing as they should.
When all of this is done, then do a super charger speed test and let me know what you get.
Cheers Angelo