2.5 4cyl. with starting problem. It has fuel to fuel rail and spark to the plugs. It ran fine then I shut it off and it would not restart for 2hrs.then it started fin

does it start with 5%(a tad) right foot throttle pressed?
is the IP cluster, IMMO lamp happy? (immobilizer)?????
check all fused first? NOT RELAYS.
check spark first if engine itself tests good.
the classic way for 100 years a test spark plug used.
if spark is good then spray test fuel works.? FOR 3seconds
if that works, then fueling is bad. (no start)
the knock sensor does not kill spark. (it fine tunes spark timing only and only if the engine pings going fast.

then scan the pCM OBD2 port for DTC errors.
check fuel pressure, at the rail.
ok dead fuel pressure.
fuel pump relay is called on this car
AS EFI MAIN relay
HORN RELAY SAME (SWAPS)

if the PCM detects spark bad it cuts fuel dead.
to prevent crash and burn as see on TV..
the crash sensor also trips the pump off line.
page 553 users man
FUEL PUMP SHUT OFF SYSTEM The fuel pump shut off system stops supplying fuel to the
engine to minimize the risk of fuel leakage when the engine
stalls or an airbag inflates upon collision. To restart the engine
after the fuel pump shut off system activates, turn the ignition
switch to "ACC" or "LOCK" once and start it.


https://au.lexusownersclub.com/forums/topic/8368-how-do-i-access-the-rx330-fuel-pump/

What is missing from the firing;
Air, Fuel, Compression and spark.

Fuel not reaching fuel rail, battery low or discharged, or defective spark plugs.

I have ran into problems like this, so I replaced the ECM and that fixed the problem, you can try this, may help.

Assuming she ran good before she sat, replacing the plugs, cap and rotor isn't a bad idea.Step 1: Make sure you have good spark. No need to worry about timing right now. Step 2: If you have spark, then we have to see if its getting gas. There are two fuel pumps on this Bronco. One in tank and one on the frame rail. Can you hear either one running? The in tank one should come on for a few minutes and shut off. The front one is harder to hear.If you hear it, borrow or rent a FUEL PRESSURE GAUGE and check your fuel pressure. There is a fitting similar to a tire valve on fuel rail. Pressure should remain constant.If either pump fails you will not get adequate fuel flow. The front pump is easy to get to for trouble-shooting. Don't buy anything unless your sure you will need it. Hope this helps.

are the injectors working check with a noid light if not check power supply.

Step #1 in any automobile diagnosis is "Isolate the system"
Switching fuel tanks may have seemed like a good idea, but it did not definitively determine whether the the fuel is getting to the fuel rails, so you are no closer to eliminating the fuel devery system than you were when the engine died.
If it does it again, you should do the easiest things first.
Pull a spark plug wire and check to see that you have good spark reaching the spark plugs. Good spark will eliminate the entire spark control system.
Only if you have good spark should you suspect a "part-time " fuel system problem. The Fuel delivery system can be eliminated if actual fuel pressure is checked at the fuel rail. (although you could still have injectors not firing for one reason or another)
You are losing one of these systems. (spark or fuel) only once you have determined which one, can you continue diagnosis to pinpiont the failure.

OK this is what you should do 1. check for spark. 2. check to see if you are getting fuel pressure at the fuel rail. 3. if you don't get spark you have a bad coil or a bad electronic control module,also check the plug wires and spark plugs. the wires could make your car studer 3. if you don't get fuel at the fuel rail you have a bad fuel pump. get back to me and let me know what you found. Thank you

Try changing the fuel filter and checking the fuel pressure at the shredder valve. The readings should be 60 to 65psi with the fuel line pressurized with the engine not running, once the engine is running. It should drop by 5psi. Start with the simple things first. Keep me posted, be glad to help.

change fuel filter if you have then change fuel pump