Your MAP Sensor sits above the PCV Valve; if the valve is sticking or plugged it could trigger a code: PCV Installation
I'd replace the valve, clear the code, and see if it comes back.

For the cruise control, if the brake lights are working, check the cruise control fuse with a test light, and try adjusting the cable:

Cruise Control Cable Adjustment (3800 L36 (VIN K), L67 (VIN 1))



1. Clamp the side of the cruise control cable adjuster lock with a pair of pliers and pull the adjuster lock out in order to disengage the cruise control cable adjuster lock (1).
2. The cruise control cable adjuster spring will remove the slack in the cruise control cable.

Remove as much cable slack as possible without moving the throttle lever.

3. Push the adjuster lock inward toward the throttle lever in order to engage the cable adjuster lock (2).