How do I fix the following codes for a Buick Park Avenue Ultra Engine Code p0243

Question

How do I fix the following codes:

engine code P0243
also a seperate reading of P0141

Ballpark figure, about how much should I expect to pay to have these two codes fixed?

Answer 1

P0243 Boost control solenoid circuit

P0141 -02 sensor heater circuit malfunction ( Bank 1 Sensor 2)

What you will need is the boost control solenoid. and a downstream 02 sensor or the catalyst monitor sensor at Bank 1 area. Both of these sensor / solenoid are fused protected check the fuse first in the engine fuse box, for the Boost solenoid the fuse is listed as A/C CLU which is a 10 amp fuse. The 02 sensor fuse is listed as OXY SEN which is a 10 amp fuse.