Im in need of help ! I have 06 Equinox untill-it started raining. The sunroof leaked getting everything wet. Know along with the check engine light there is the reduced engine power & traction control lights on. Know im getting codes P1125,P2138,P0120,P0700 & P0455 . Where should I start ?

 

Do you know what those codes are for? That is likely the root of your problem. Find out what the codes mean, and fix them. I know the p0455 is for the EVAP control module, as for the other ones I have no clue.

 

check gm bulletin there is a bulletin for water intrusion getting into the bulkhead connector and causing a short make sure you sunroof drains are clean

 

here is the bulletin number 07-06-04-019D

 

the p0455 is a evap large leak there is also a bulletin for that the number is09-06-04-001