what is the mostly likely cause of having 4 O2 sensor malfunctions?

Question

2000 ford mustang 6 cylinder.

what is the mostly likely cause of having 4 O2 sensor malfunctions? error codes: P0135, P0141, P0155, P0161. Also have P0443, P1409, P0141, P1451! And yes, I was recently involved in an accident. Replaced a vent control solenoid located on front passenger side wheel well. Please help!

Answer 1

This is likely caused by a power supply problem to the sensors. You need to check for any broken wires where the car was hit. It's very common for all 4 O2 sensors to share the same power source. Also, a possible broken ground wire can cause this.