[Tranzporter786]

I'm getting 3.2 volts at knock sensor wires and fsm says its supposed to be approx 4 volts but what I don't get is I'm getting 3.2 volts from ecu wires to knock sensor plug is it supposed to be like that or is the knock sensor supposed to send the ecu a volt reading?? What happens is I get a good first gear pull but second gear keeps cutting out at 5.5-6k rpm it sometimes cuts out or just starts sputtering any help is appreciated changed the knock sensors still had the same readings too. Would the knock sensor cause this problem? Any help appreciated I'm running everything stock with 300zx maf and chasebays harness!