pulled my O2 sensor. the left is bank 1's. the right is bank 2's after i cleaned it before. is the white stuff coolant? i was getting rich codes from both banks, both sensors were caked with this white stuff which im assuming is coolant. these are my stock 113K mile sensors, the ones by the manifolds.
also, the front and rear O2's look the same. can i simply flip the fronts for the rears? they're the same thing and same plug type. the rears look fine. could i flip these to see if my problem was with the front O2 sensors?
also, the front and rear O2's look the same. can i simply flip the fronts for the rears? they're the same thing and same plug type. the rears look fine. could i flip these to see if my problem was with the front O2 sensors?