Sometimes screwing the MAP tank on tighter helps.
Without anything attached to the ProVari the "Ao" should read "OP", meaning open.
What is your voltage set at?
Do you have a Digital Multi-Meter to check the Ohms of the CE2?
Do you have any other CE2's?
You could try to a new CE2 in the MAP tank.
If you have another CE2, screw it on the ProVari and check the Ohms, you should put a drop of juice on the coil prior to checking it.
Without anything attached to the ProVari the "Ao" should read "OP", meaning open.
What is your voltage set at?
Do you have a Digital Multi-Meter to check the Ohms of the CE2?
Do you have any other CE2's?
You could try to a new CE2 in the MAP tank.
If you have another CE2, screw it on the ProVari and check the Ohms, you should put a drop of juice on the coil prior to checking it.