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It could be that the fuel pressure is too high. This COULD cause the injectors to not fire when they are triggered. Once you bleed the pressure and the car is running, there is enough flow to keep the pressure at a manageable level. I would get a fuel pressure gauge and check the pressure at the rail. You may find a new fuel pressure regulator will fix your issue.
check fuel pressure.sound like fuel pump not working.fuel pressure should be 41 - 47 psi. if not replace fuel filter, still too low pump faulty, if you not getting fuel pressure, pump still not working check fuel pump fuse and relay.code scan car first look for fault in pcm.it controls the fuel pump relay and fuel pump.
CHECK FUEL PUMP PRESSURE. SHOULD BE 41 - 47 PSI. IF FUEL PRESSURE REAL LOW CHANGE FUEL FILTER.STILL LOW FUEL PUMP FAULTY. IF FUEL PUMP NOT RUNNING CHECK FUEL PUMP FUSE OR RELAY.IF ALL IS GOOD FUEL PUMP BAD. HAVE VECHICLE SCANNED WITH A SCANNER BEFORE BUYING NEW PARTS. LOOK FOR FUEL PUMP FAULT CODES AND PCM FAULT CODES.
There are 2 fuel lines connecting to the fuel injector rail. The larger line is the pressure line and the smaller line is the return line. The smaller line attaches to the fuel pressure regulator. You will notice that the regulator also has a vacuum line attached to it. If you are planning on changing it your self, let me know. There is a specific way to change it for safety reasons.
Let me know.