Just had the same problem. The voltage regulator wires had come loose. Remove the secondary clutch and check all of the voltage regulator wires. I found the plug on mine half connected. Soon as I plugged it in all the way the apv worked perfect again. If that looks good then check the wires near the servo and make sure they didnt rub on the secondary. If you are still having no luck then try swapping the ecu with a different one. If you are still stuck then the last resort and the most unpleasant is swapping the stator.
D&D F9 stroker asphalt 9.39 @134 MPH All Motor!
D&D f8 Asphalt 9.79 @ 131 MPH
Bone stock F7 asphalt 6.37 @ 104 mph 1/8th mile