Hi,
Do me a favor. Try this and let me know if it starts normally. I'm wondering if dirt got into one of the fuel injectors. When you turn the key off, the fuel pressure will slowly drop to a point and then stop. When you turn the key back on, it primes to rebuild pressure. If there is a leak due to a stuck injector, it could take a few primes to get the pressure back to where it needs to be. Try this and let me know.
1) Turn the key from the off to run position (engine off) and count to 5.
2) Turn the key off and repeat step 1 a total of 4 times.
3) On the 5th time, see if it starts normally.
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Also, here is a link that explains how to test fuel pressure. I suspect this would be a good thing to do. If pressure is within the manufacturer's specifications, then we need to watch fuel pressure drop off when the key is turned off.
https://www.2carpros.com/articles/how-to-check-fuel-system-pressure-and-regulator
I attached the pressure specifications below. Also, when you replaced the pump, did you replace the entire module or just the pump motor?
Let me know.
Joe
See pic below.
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Sunday, October 15th, 2023 AT 7:42 PM