Hi: I've got a 1990 FJ62 with a newly rebuilt engine. Runs great and starts great cold. When it heats up in the sun it won't start. A little work shows that it never loses spark, but that it does lose injector pulse when it heats up [pulses once, then quits]. So...I think it's probably an ECU problem. Questions: --anyone have any experinece like this? --who carries used ECU's? --is it a problem matching ECUs to a specific engine [ie by year, serial number, etc] Thanks for any help!