Since the timeout is expressed in µs you will need for a 2ms timeout to specify 2000.
According to following "The timeout interval is measured based on the system frequency defined by
PSoC Creator at build time", how do I measure the timeout interval if my IMO frequency = 24MHz?
Language problem: "The timeout interval is measured based on the system frequency.." means
the interval has already been measured, you do not need to do that. Just specify your wanted time your ECO needs to start up.