In my case, my 98 SL SOHC manual was doing >a similar thing when the crankshaft position sensor went out. >It would start fine cold, but as soon as it >got to normal running temp, it would die. It only >happened intermittently at first, but eventually did it every time >I would run it, within about ten minutes of starting. >I never got the service engine light. I guess it >was because when it died, the computer shut off before >it could be set. Not sure, but it is the >only thing I can figure. >If you have a Chilton's or Hayne's and a multimeter, >you can pull it out check the resistance on the >sensor. But remember to heat it up and check it, >too, because I have read of them only failing after >heating. >Good luck. >