so i am getting this strange set of codes that always come in a group and always at the same time.

so its
22 - vtec pressure switch
17 - vss
6 - ECT sensor
3 - Map sensor

it always come up after a few gears of vtec engagement time. i have replace both the map sensor, and ect sensor. as well as trying another vtec pressure switch. code still comes up. i recently have replace my gauge cluster and am using a vss from an ek civic (i drive an ef hatch.) i am getting speedo readings and have checked the wiring input from speedo to ecu. im not sure what to make of this. i am going to be checking oil pressure here this weekend to see if maybe the pressure is just dropping to low, but i just dont see how that would cause the other codes to be thrown as well.

if anyone has any insight on how these codes relate to one another or how they could all be getting thrown at once i would really appreciate the help.
thanks for reading this
-andrew