need help bad. thank you on 2004 Cadillac DeVille

car keep cutting off when try to start it

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1 answer
You have to check for the basics - spark, fuel and air. Something is missing from the equation - testing is required - fuel pressure, spark, air intake leaks, restriction... Nothing is easy to see via the Internet - you will need to perform some rudimentary testing to determine the cause of your issues. Good luck!