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Hello, my name is ***** ***** I am a professional here at Just Answer. I have noticed that your question was not getting a response and thought I would see if you still need help with this.I apologize for the delay and I hope I can still assist you with this here.In order for the engine to start and run you need good spark, injector pulse and proper fuel pressure. When it stalls on you start with checking each one of these thing and lets see which one you are lacking. Post back with the results as well as complete information as to what year, make and model your ca is and we can work from there to try and determine the cause.
Are you saying you only have 12, 16 14 and 15 PSI of compression on these cylinders?