Car is up and running again !
Great service and highly recommend Enny and his company above - although they are crazy busy. He is a former Toyota/Lexus automotive locksmith, very knowledgeable and loves what he does.
They came to my house last week and could not get the car started -discovered that the key was missing the immobilizer chip (gray magnet looking piece) and that the ECU had problem reflashing. So they took the ECU and key with them to work on.
Came back late tonight with reflashed ECU (had to desolder and plug new (IC900?) chip in order to reflash). Installed ECU then reprogrammed with (3) keys - (2) dummy and my one key. Car started up like a champ.
Still find it strange that the key was missing the immobilizer piece. Must of popped out when exchanging key shells. I do remember that the black membrane was stuck to the plastic shell in one area so that the two pieces became separated (membrane and electronic case) - so word of advice to those moving electronics to new keyshells - do the switch in sterile work area where you would be able to detect the immobilizer piece falling out.
Finally, for those who are wondering, all is not lost when you lose your one and only master key. You can get the ECU reflashed to virgin, and then reprogrammed with a new master key.
Thanks to AnthonyMtz and the legendary salimshah. salimshah FYI Enny confirmed what Lexus said in that there is no way to disable the immobilizer although if that option was available, I would have gladly taken it.
Last edited by tarzan17; 08-30-14 at 10:04 PM.
Reason: Missing thanks !