Ok, I have been living with the SES for some time. Replaced fuel cap 2 times and the dreaded code would go away for a while.
Today I probed the line going to the vacuume solinoid. I am getting battery voltag line to line or line to ground. Just no amperage not even milli amps. Checked resistance tru solinoid it is fine. Have to assume it is working.
Did the key check on the SES lite and it still comes up flashing then solid. Disconected battery for a few minutes. Still same. According to the manual the OBD system is suspect. Tried clearing the one code with scaner and it comes right back.