What is going on when Lexus 93 sc300 starts and shuts off?

When a Lexus SC300 starts and then shuts off immediately, it could indicate several issues. Common causes include a faulty fuel pump, a bad ignition system, or issues with the engine's sensors, such as the crankshaft or camshaft position sensors. Additionally, problems with the fuel supply, such as clogged fuel filters or fuel injectors, may also lead to this issue. It's advisable to perform a diagnostic check to pinpoint the exact cause.