P1133 Diagnostic Trouble Code Discussion for February 2007
Heated Oxygen Sensor (Bank 1 Sensor 1) Insufficient Switching
Note: This is a professional automotive technician's resource.
Vehicle Owners: If you are seeking an automotive repair professional to service your vehicle, visit the iATN Repair Shop Finder.Trouble Ticket Help Requests for DTC P1133
| Help Request | Posted | |
| 2001 Subaru Outback 2.5L MIL Lamp on VIN: 4S3BH66571 P1133: Air Fuel Sensor (Bank 1 Sensor 1) Heater Circuit High Input. ... fuel circuit open and P1133 heater high input. We found no ground from ECU to sensor connector for the heater. O2 heater resistance tests good (we replaced sensor last March and again in December for code P1130). All wires from A/F sensors show continuity ... |
February 14, 2007 |
