I have a 2001 camaro with a 3800 v6 it cranks but wont start. no feul and the injectors are not firing. i can jump the feul pump relay and get feul pressure but the injectors will not fire.

What make ,model an year vehicle ? Is there spark at the spark plug ? Fuel pump good ? how do you know , did you do a fuel pressure test ? Are the fuel injectors being commanded on by the PCM/ECM ? Does the engine have good compression ? An what is a Feul starvation pump ? Have been fixing vehicles for over thirty years , that's a new one on me !

Lots of things could cause a no-start, Hendrik. Is your "Check Engine" light on? If so, please have someone get the OBD error codes from the car's computer.

Does it crank but not fire?

If it doesn't crank, check the battery condition, battery connections, ground connections to frame and engine block, starter solenoid, starter motor.

If it cranks, doublecheck your fuel pump installation. Make sure the new fuel pump is properly connected and properly electrically grounded. Look for a fuel pump fuse. Check for proper fuel pressure at the fuel rail, check the fuel flow rate. Check for spark, check or replace spark plugs, distributor cap, rotor, plug wires. Check valve timing, replace timing belt or chain if necessary. Check compression.

With anoid light (special light for testing) check injector connector if the anoid light blink has you crank engine, if yes check fuel pressure.

Could be a problem with the pickup coil in the bottom of the distributor if equipped. The pickup coil provides the crank signal for the injectors and ignition module.
Did you clear the code and then 53 came back ?
On most models code 53 means the computer or one of the components is getting over 13 volts.

Do a fuel pressure test. If you have compression, and good spark, this is where you should start.

Using a multimeter check the wiring for power at the pump and at the relay. It sounds like a bad relay.

,slacken the injector pipes off then assistant cranks engine with throttle wide open ,as you see fuel start to appear at an injector tighten the nut ,as soon as you have about 2 or more bled out it will fire .easy to do

you probly need to recondition the injectors and change the feul filter

replace your crank angle sensor

With the key ON engine OFF K.O.E.O. (cycle the key ON-OFF several times as pump only runs for 2 seconds) the pressure should be 41-47 PSI