The OBD code P1923 for Audi indicates an issue with the Engine Control Module (ECM).
Symptoms include the Engine Light being ON.
This code is usually caused by a faulty ECM, open/shorted ECM harness, or poor electrical connection.
It is a moderate issue.
To fix it, inspect the wiring harness and connectors for damage, and check connector pins for any signs of damage.
| Repair Importance Level | 10.0 (Out of 10) |
| Estimated Repair Time | Approximately 1.0 hour |
| Repair Difficulty Level | 10.0 (Out of 10) |
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Symptoms of the Audi p1923 OBD Code
The Audi fault code P1923 indicates an issue with the fuel rail pressure sensor circuit.
- Symptoms: Engine Light ON.
- Possible lack of power during acceleration.
- Engine may run rough or misfire.
- Vehicle may stall at idle.
Causes of the Audi p1923 OBD Code
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P1923 in Audi indicates an issue with the fuel rail pressure sensor circuit.
- P1923 can be caused by a faulty Engine Control Module (ECM).
- An open or shorted Engine Control Module (ECM) harness.
- Poor electrical connection in the Engine Control Module (ECM) circuit.
Fixing Audi Error Code p1923 Step By Step
To address fault code P1923 on an Audi, inspect the fuel rail pressure sensor for issues.
- To fix Audi OBDII code P1923, first, review the ‘Possible Causes’ mentioned above and visually examine the corresponding wiring harness and connectors.
- Ensure to check for any damaged components and inspect the connector pins for signs of being broken, bent, pushed out, or corroded.
- Next, check the operation of the fuel rail pressure sensor and its wiring.
- Test the fuel pressure sensor for proper voltage and resistance values.
- Replace the fuel rail pressure sensor if it fails testing.
- Clear the fault codes and perform a test drive to verify the repair.
- If the issue persists, consider seeking assistance from a qualified technician for further diagnosis.
Cost Of Fixing Audi p1923 Fault Code
The repair for Audi fault code P1923 may involve replacing the fuel rail pressure sensor.
The cost to diagnose and fix Audi OBD code P1923 depends on the estimated 1. 0hour repair time.
Labor rates range from $75 to $150 per hour, so the total cost could be between $75 and $150. Factors like shop rates and complexity of the repair can influence the final cost.
Details of the Audi p1923 OBD Code
The fault code P1923 on an Audi relates to the fuel rail pressure sensor high input.
Audi OBD code P1923 means the Fuel Rail Pressure Sensor Circuit High Input.
This code is triggered by the Engine Control Module (ECM) when it detects a high voltage signal from the fuel rail pressure sensor.
The fuel rail pressure sensor is responsible for monitoring the fuel pressure in the fuel rail and sending this information to the ECM.
When the ECM receives a high voltage signal from the sensor, it sets code P1923 to indicate a potential issue with the fuel pressure sensor circuit.
Mechanic’s Tech Notes
For Audi fault code P1923, refer to detailed diagnostic information for troubleshooting guidance.
To diagnose and fix OBDII code P1923 on an Audi, start by checking the Transmission Control Module (TCM) power and ground using a multimeter.
Verify TCM communication over the Controller Area Network (CAN) using a scan tool.
If the TCM does not respond, reprogramming or reflashing may be necessary.
Visually inspect the wiring harness and connectors for any damage, and ensure connector pins are not broken, bent, pushed out, or corroded.
This thorough inspection can help identify and resolve the issue causing the P1923 fault code.
FAQ
Common symptoms of OBD code P1923 in an Audi include Engine Light ON. Causes may be a faulty ECM or related wiring issues. Inspect and repair as needed.
OBD code P1923 in Audi vehicles is typically caused by a faulty Engine Control Module (ECM), open/shorted harness, or poor electrical connection. Inspect and repair wiring/connectors.
Diagnose and repair OBD code P1923 in your Audi by checking for a faulty ECM, open/shorted harness, or poor electrical connection. Inspect wiring and connectors for damage.
Wrap Up
If your Audi is displaying OBD code P1923, you may experience rough shifting, transmission slipping, or even the transmission going into limp mode.
This code typically indicates an issue with the transmission fluid pressure sensor switch ‘A’ circuit.
Possible causes include a faulty sensor, damaged wiring, or poor electrical connections.
To address Audi OBD code P1923, start by inspecting the wiring harness and connectors related to the transmission fluid pressure sensor switch.
Check for any signs of damage, corrosion, or loose connections.
If no issues are found, consider testing or replacing the transmission fluid pressure sensor switch
