car washed my car check engine light came reading code p1399 what should I do?

Question

engine light came on right after car wash and started shaking obd11 code read P1399

Answer 1

P1399 Random misfire

Water and the ignition system or water in the intake system depending on how the car was washed, either way you have to manually remove the water or allow it to dry out, if its in the ignition or the sparkplug well it needs to be removed by removing the ignition coils and allow it to air dry out.