I just bought a 1986 Firebird,with a 305 4bbl carb. The check engine light was on when I bought it. My first scan of the ECM revealed code 32 and 34. I discovered both the MAP and BARO sensers were disconnected. I connected new vaccume hose to each, now only getting code 32.

Now here's where it gets weird. The Haynes manual says code 32 is a defective Differential Pressure sensor. However, it refers to both the MAP sensor and BARO sensor as the differential pressure sensor. This vehical has both sensors. The BARO sensor mounted on the firewall infront of the driver side, and the MAP sensor on the firewall on the passenger side. Can someone please recommend where to go from here, replace MAP sensor or BARO sensor?

Any help will be appreciated.