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REPLACE THE FUEL FILTER FIRST.CHECK FUEL PRESSURE.IT SHOULD BE 41 - 47 PSI. MAKE SURE FUEL PRESSURE REGULATOR VACUUM HOSE IN PLACE AND GETTING VACUUM. IF ALL IS GOOD FUEL PRESSURE IS LOW.FUEL PUMP MORE LIKELY THE PROBLEM.
I had the same problem with the fuel pressure. I had a brand new fuel pump that was 11 months old. I had that fuel pump replaced. It worked for about 2 weeks and the car would not start. I had to get the security system replaced. The car runs now. I have had this car for three years and it has put me through hell.
if car wont start.make sure your battery volts are 12.5.if not charge battery.or replace it if dont hold a charge.if battery is good engine wont turn over.make sure battery cables is clean and tight if all good no start .have starter and starter solenoid check.if battery and starter is good.check for fuel .has some one turn ignition to the on position.go to rear of car listen for fuel pump noise.if your hear fuel pump check ignition system for spark.go to auto parts place buy a spark tester.if you get no spark .check .ignition fuses and ignition module.if you hear no fuel pump.replace relay or fuse.if if fuse and relay good replace fuel pump.if every thing good .your car could have crank sensor problem. or your car is in theft deterrant mode.if so have your car towed in and scanned.
May have small fuel leak or fuel pump sending unit leak down. Or fuel pump psi low.
After 30 minutes try this turn key on. do not try to start wait 10 seconds turn key off then on again 10 seconds then try & start if it starts right away fuel system is losing PSI either back through the fuel pump or a leak in line. If you can find no leaks would suggest replace fuel pump & assembly. Another possible but rare fuel injectors may be leaking fuel over time & dropping PSI needed for start up.