What can I do about code P050B on a 06 mercury milan

Question

The car runs perfect but the check engine light is on. Plugs, coils and wires have been replaced. Also pcm board was repaired. I recently cleared the code drove for 102 miles without turning off motor, I then turned off motor and after 45 minutes started the car. No check engine light came on. I then drove for another 82 miles, turned off the car for ten minutes and when I turned it on check engine light is back on. Any ideas??

Answer 1

are you using the OEM spark plugs? Are you using OEM coils also?

check the connectors to the coils and PCM for corrosion

the problem might be with the computer, some people used a new computer which fixed the issue