P0030 Diagnostic Trouble Code Discussion for August 2021
Heated Oxygen Sensor (Bank 1 Sensor 1) Heater Control Circuit Malfunction
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 P0030
| Help Request | Posted | |
| 2006 Chevrolet Trailblazer LT 4.2L Poor Idle Quality, Stall, Misfire, MIL Lamp on VIN: 1GNET16S66 P0030: Heated Oxygen Sensor (Bank 1 Sensor 1) Heater Control Circuit Malfunction. Towed in by customer. Will start and run but miss on cylinders 4 and 5 all times. Compression, spark, fuel all seem good. Seems to run better when vacuum leak is added. Sensors seem to be reading ok on data, fuel trim staying good, Doesn't run well enough ... |
August 03, 2021 |
