Went to Toyota dealer and he charged me $92.50 to diagnose problem which is their hourly rate. The bad news is that it is the shut off valves in the gas tank which needs to be replaced with gaskets. Total for the repair is $476 (mostly labor) but he will deduct the $92.50 and give me a loaner. I'm waiting for parts but may go to my corner garage for an estimate but still be out the 92.