Similar problems seem to be touched on in previous threads, but not exactly like this.
1992 SC400 - 403,000 km ( 250,000 miles ) - Each of the last two evenings, the car has stalled out, once at about 60 kmph ( 35 mph ) and the second time while waiting to turn left. Each time, I slipped it into neutral and restarted it with no further probems. I didn't notice any check engine lights on the dash.
Possibly the TPS?
Any similar incidents and fixes would be helpful

 

Wrong section.

Could be the fuel pump ecu going out.

 

Mine has done this ONCE in the past year and a half ive had it, did it like a month ago, i pulled up to a stop light and it stalled. Hope its not a big problem

 

My SC300 has been doing that a lot lately. From what I was told, it is probably the fuel pump ECU going out.

 

check spark plugs... air filter and fuel filter