Cranks several seconds before starting

Good evening,

I would check the fuel pressure. You may be bleeding the fuel back to the tank and it is priming before starting.

https://www.2carpros.com/articles/how-to-check-fuel-system-pressure-and-regulator

Also, It could be a crank sensor.

https://www.2carpros.com/articles/symptoms-of-a-bad-crankshaft-sensor

https://www.2carpros.com/articles/crankshaft-angle-sensor-replacement

Roy