Mitsubishi Repair: 1993 eagle talon chk eng lt, mass air sensor, intake air temp

Question
1993 eagle talon 2.0l dohc non turbo,manual.  Check engine light is on with codes for the cam sensor, baro sensor, intake air temp and coolant temp sensors, I believe in that order to.  It has a slight stumble off idle and sometimes surges.  Has had engine replaced and cam sensor replaced with a salvage unit.  Double checked cam timing and ignition timing.  Both are set to factory spec.  Ford tech workin on an import needs help.

Answer
Aaron,
The IAT and baro sensor are part of the mass air sensor (MAS).  You may need to replace that.  You should also have the idle air controller on the throttle body inspected as well.  With the MAS replaced, it may fix your problem and prevent the other codes from appearing as well.
Good luck!