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could be a problem with engine electrical or still with fuel delivery. unhook a fuel injector line while it cranks and see if it shoots out spurts gas, just as the fuel pump line is supposed to shoot out a stream of gas while cranking. if you replaced the fuel pump, and no gas shoots out the disconnected fuel pump line, there is an electrical problem, (fuse, relay or wiring issue) to your new fuel pump. if the gas spurts out the loose injector line, then move on to electrical:
first ensure your ignition coil has spark by disconnecting the coil ouput lead and shorting it out to the chassis of the car. you should see a spark, when you short that circuit while cranking. if you have spark, you will have to move on to the spark plugs/ cables, then the distributor cap/coil packs.
if its part of the electrical system, it will be sensitive to temperature/humidity, and that may be why it only fails to start early in the morning. if it were the fuel injector, it would be more likely to start cold, and NOT re-start after it had already been warmed up and cut off recently.
do you hear the fuel pump working? and did you check the fuses? also check and see if the fuel cut of switch is on. it was typically located in the trunk by the hinges that hold th trunk or on the side but look in your owners manuel or google it. i would guess fuel pump in honesty.
At the back of the engine in between the trans. and engine is a crank sensor. It's on the pass. side of the block. Follow the crank sensor wiring that runs under the engine to see if the harness is broken. If it's in good shape then replace the crank sensor.
Engage the "clear flood mode" by holding the gas pedal to the floor while cranking. This cuts down on fuel delivery to clear a flooded engine. As the engine starts and runs, let up on the gas.
You mean when you said it tries to crank but didn't, you mean start right. It did crank ok just wouldn't start? Sounds like it could be a bad fuel pump or clogged fuel filter. You need to check to see if there is spark. Pull one of the spark plug boots off and put a nail, paper clip, anything you can inside of the boot and put it on top of your engine and have someone turn the engine over to see if there is spark to the plug wire. Let me know back what you find out.
Have you checked to see if it's getting fuel? try shooting some starting fluid into the intake if it tries starting then you have a plugged fuel filter or fuel pump.
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