Yes, there are no vacuum leaks. It must be a sensor. Turbo Tom is thinking about doing a xcal loaner program to help FF members that are in need of help, such as myself. I hope he does, it would help a lot of us FF members with problems we can't figure out on our own.
04‘ SVTF #204 of 1978
SVT Squad #66
Understeer scares the driver, oversteer scares the passenger.