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OBD Code P0043 HO2S Heater Control Circuit Low B1S3
Improper fuel-air ratios can lead to loss of engine power, loss of acceleration and stalling as well as rough idle problems along with check engine light illuminating. This can be due to P0042 error indicating problem with H02s heater control circuit.
What Causes The Problem Of Heater Circuit Control Low (B1 S3)?
- Failed Bank 1 Sensor 3
- Short/open wiring problem
- High resistance and poor electrical connections
- ECU error
Replace/Repair These Parts To Fix OBD Code P0043
1. Heated Oxygen Sensor - The inadequate heating of the oxygen sensor immediately makes the ECM to go into failsafe mode due to failure of the fuel delivery system, and engine control module. Replace faulty sensors immediately.
2. Heated Oxygen Sensor Harness - OBD Error Code P0043 may also occur if the sensor harness is damaged leading improper fuel supply causing improper engine performance. It is advised the replace with the new one. Buy quality auto parts from us.
3. Heated Oxygen Sensor Connector - A faulty Oxygen Sensor Connector can will not be able to read the correct volume of air entering the engine. Replace your old/damaged connectors now.
4. Heater Circuit Fuse - Damaged Heater Circuit Fuse can result in improper or complete failure of the heater circuit. Visit us for quality fuses and parts.
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