The only instrument light that comes on is my check engine light and car starts but dies immediately. whats wrong

Hello, none of this information is helpful in a diagnostic process, unfortunately. There are not many useful facts here. Testing needs to be performed to check for stable, consistent fuel pressure at the engine fuel rail, ignition spark, proper air coming in the intake, and no anti-theft system concern for example. Electrical testing with the starting and charging system needs to be performed also, such as with the battery first off -- is it fully charged and able to handle a charge? Following step by step processes like a technician would in troubleshooting is the only proper way to figure out what is going on.