manifold pressure

Really quick question. I have my S-AFC set to monitor pressure, but the readnig doesnt change. I have a code 3 which is MAP sensor, and I was wondering if when your throwing the code, will the s-afc still read correctly, or do i have a cracked vacuum hose somewhere…

no one? C’mon! the S-AFC reads -757 or so.

Ok, your SAFC is wired to your MAP sensor. The MAP sensor senses manifold pressure. If you have a bad MAP sensor, the SAFC will show funny readings.

Replace your MAP sensor.