lt1camaro383

I have a 97 z-28 lt1 and i keep getting the P0100 code, MAF or VAF circuit malfunction. This is a brand new build with a brand new mass air meter. I replaced the metal clip in the plug that goes to the mass air thinking the problem could be in the wiring there still same thing. Then i spliced into the wire coming out of the pcm and ran it to the plug still nothing. I have 5 volts with the key on at the plug and the ground it also good just not getting a signal to the pcm? Could it be the pcm bad? Before i pulled the old motor i got the same code with it. Any help is greatly appreciated.