The OBD code P2243 for Ford indicates an issue with the Front Heated Oxygen Sensor Bank 1. Symptoms include the Engine Light being ON.
The cause could be a faulty sensor, open/shorted harness, or poor electrical connection.
It’s important to address this promptly to prevent potential damage to the catalytic converter.
A possible fix involves inspecting and repairing the sensor, harness, or connections as needed.
Repair Importance Level | 6.67 (Out of 10) |
Estimated Repair Time | Approximately 1.0 hour |
Repair Difficulty Level | 6.67 (Out of 10) |
Symptoms of the Ford p2243 OBD Code
The vehicle may experience issues related to the Bank 1 Sensor 1 oxygen sensor circuit.
- Symptoms: Engine Light ON.
- Possible lack of power during acceleration.
- Rough idle.
- High fuel consumption.
Causes of the Ford p2243 OBD Code
Possible triggers for Ford P2243 include exhaust leaks, faulty oxygen sensor, or wiring issues.
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- P2243 can be caused by a Faulty Front Heated Oxygen Sensor Bank 1.
- A Front Heated Oxygen Sensor Bank 1 harness that is open or shorted.
- A Front Heated Oxygen Sensor Bank 1 circuit with a poor electrical connection.
Fixing Ford Error Code p2243 Step By Step
Address the issue by inspecting the Bank 1 Sensor 1 oxygen sensor circuit for potential faults.
- To fix Ford OBDII code P2243, start by reviewing the possible causes related to the HO2S12 sensor circuit.
- Visually inspect the wiring harness and connectors for any damage.
- Check the connector pins for signs of being broken, bent, pushed out, or corroded.
- Repair or replace any damaged components found during the inspection.
- Clear the fault codes and perform a test drive to verify the repair.
- If the code returns, further diagnostics may be necessary to pinpoint the exact cause of the issue.
Cost Of Fixing Ford p2243 Fault Code
Diagnosing and repairing fault code P2243 on a Ford vehicle typically involves addressing the oxygen sensor.
The cost to diagnose and fix Ford OBD code P2243 is typically based on an estimated repair time of 1. 0 hour.
Labor rates range from $75 to $150 per hour, so the cost can vary between $75 and $150, excluding parts.
Factors like shop rates and the complexity of the repair can influence the final cost.
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Details of the Ford p2243 OBD Code
The fault code P2243 on a Ford indicates an issue with the Bank 1 Sensor 1 oxygen sensor.
OBD code P2243 for Ford vehicles indicates a fault with the upstream oxygen sensor for bank 1 sensor 1. This sensor is located before the catalytic converter and is responsible for measuring the oxygen content in the exhaust gases.
The ECM triggers this code when it detects a signal voltage that is outside of the expected range for proper fuel control and emissions.
This code is related to the air/fuel ratio control system in the vehicle.
Mechanic’s Tech Notes
Detailed information on Ford code P2243, which relates to the Bank 1 Sensor 1 oxygen sensor reference voltage circuit.
To diagnose and fix OBDII code P2243 on a Ford vehicle, start by visually inspecting the wiring harness and connectors related to the oxygen sensor.
Look for any damage or corrosion.
Use a voltmeter to check the sensor’s voltage signal.
Ensure the sensor is receiving power and ground.
Scan tools can help monitor sensor data and confirm proper communication over the network.
If no issues are found during visual inspection and voltage checks, consider replacing the oxygen sensor itself.
Reflashing the vehicle’s computer may also be necessary to clear the fault code.
FAQ
Common symptoms of OBD code P2243 in a Ford vehicle include the Engine Light ON and potential issues with the Front Heated Oxygen Sensor Bank 1.
OBD code P2243 in a Ford is typically caused by a faulty Front Heated Oxygen Sensor Bank 1 or issues with its wiring harness or connectors.
Diagnose and repair OBD code P2243 in your Ford: Symptoms Engine Light ON; Causes Faulty Front Heated Oxygen Sensor Bank 1; Fix Inspect wiring harness and connectors.

Wrap Up
If your Ford is displaying OBD code P2243 and you notice issues with the vehicle’s evaporative emission control system, it could be caused by a fault in the Bank 1 Sensor 1 oxygen sensor circuit.
This may be due to a faulty oxygen sensor, damaged wiring, or poor electrical connections.
To address Ford OBD code P2243, start by inspecting the wiring harness and connectors related to the Bank 1 Sensor 1 oxygen sensor.
Check for any signs of damage, corrosion, or loose connections.
If no issues are found, consider replacing the oxygen sensor itself to resolve