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Engine-Codes – MINI – P0373 MINI

P0373 MINI Code - Timing Reference High Resolution Signal 'A' Intermittent/Erratic Pulses

Quick Answer

The P0373 MINI code indicates that there is an issue with the Timing Reference High Resolution Signal 'A' being intermittent or producing erratic pulses. Common causes include Faulty crankshaft position sensor, Damaged wiring harness, Loose or corroded connections. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means
P0373 MINI indicates Timing Reference High Resolution Signal 'A' Intermittent/Erratic Pulses.
Common causes
Common causes include Faulty crankshaft position sensor, Damaged wiring harness, Loose or corroded connections.
Severity
High - diagnose this code as soon as possible.
Can I drive?
Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
What is this?
Table of contents Created and updated by William Orellana on Sep 11, 2024
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Code P0373 MINI Description

The P0373 MINI code indicates that there is an issue with the Timing Reference High Resolution Signal 'A' being intermittent or producing erratic pulses. This signal is crucial for the engine's timing system to function properly. The Engine Control Module (ECM) relies on this signal to accurately control the ignition timing and fuel injection timing. When the signal is inconsistent or erratic, it can lead to poor engine performance, misfires, and even potential engine damage.

OBDII Code P0373 MINI - Timing Reference High Resolution Signal 'A' Intermittent/Erratic Pulses
P0373 MINI Code - Timing Reference High Resolution Signal 'A' Intermittent/Erratic Pulses

Common Causes of P0373 MINI

  1. Faulty crankshaft position sensor
  2. Damaged wiring harness
  3. Loose or corroded connections
  4. Malfunctioning ECM
  5. Issues with the timing chain or belt

Symptoms of P0373 MINI

  1. Rough idling
  2. Hesitation during acceleration
  3. Reduced fuel efficiency
  4. Stalling
  5. Engine misfires

How to Fix P0373 MINI

  1. Diagnose the issue by using a scan tool to check for the P0373 MINI code and perform a comprehensive inspection of the timing components.
  2. Inspect the crankshaft position sensor and wiring harness for any damage or wear. Replace any faulty components.
  3. Check and tighten any loose connections related to the timing system.
  4. Clear the code from the ECM and perform a road test to ensure the issue has been resolved.
  5. If the problem persists, consider consulting with a professional mechanic for further diagnosis and potentially replacing the ECM.

Cost to Fix P0373 MINI

The typical repair costs for addressing the P0373 MINI code can vary depending on the specific cause of the issue. On average, the parts and labor for this repair could range from $200 to $500. However, it's important to note that the actual cost may vary based on the location, vehicle make and model, and the extent of the repairs needed. Additionally, the diagnosis time and labor rates at auto repair shops can influence the overall cost, with rates typically ranging between $80 and $150 per hour. It is advisable to consult with a trusted mechanic to obtain a more accurate estimate for your specific situation.

When is the Code Detected?

Some high resolution pulses are intermittent from the optical sensor to the PCM

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About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about P0373 MINI Code

1. What are the common symptoms of OBDII code P0373 in a MINI?

- Common symptoms include rough engine operation, misfires, difficulty starting the engine, and a noticeable decrease in engine performance.

2. What could cause the OBDII code P0373 in a MINI to trigger?

- The code P0373 is typically triggered by issues with the timing reference high-resolution signal 'A,' such as a faulty crankshaft position sensor, damaged wiring, or a defective timing chain.

3. How can I diagnose the cause of OBDII code P0373 in my MINI?

- Diagnosing the cause of code P0373 may involve checking the crankshaft position sensor for proper operation, inspecting the wiring for any damage, and ensuring the timing chain is in good condition.

4. Can a faulty camshaft position sensor trigger OBDII code P0373 in a MINI?

- While a faulty camshaft position sensor can potentially cause similar symptoms, OBDII code P0373 specifically relates to issues with the timing reference high-resolution signal 'A' from the crankshaft position sensor.

5. What are the potential repair options for addressing OBDII code P0373 in a MINI?

- Repair options may include replacing the crankshaft position sensor, repairing damaged wiring, inspecting and potentially replacing the timing chain, and clearing the fault code from the vehicle's computer.

6. Is it safe to continue driving with OBDII code P0373 present in a MINI?

- It is not recommended to continue driving with OBDII code P0373 present, as it can lead to further engine damage and potentially leave you stranded if the issue worsens.

7. Can a DIY enthusiast repair OBDII code P0373 in a MINI?

- Depending on the underlying cause, some DIY enthusiasts with mechanical knowledge may be able to address OBDII code P0373 by replacing the crankshaft position sensor or repairing damaged wiring.

8. Will resetting the fault code manually resolve OBDII code P0373 in a MINI?

- Simply resetting the fault code without addressing the underlying issue will not resolve OBDII code P0373, as the problem causing the code will likely persist and trigger the code again.

9. How urgent is it to address OBDII code P0373 in a MINI?

- It is recommended to address OBDII code P0373 promptly to prevent potential engine damage, ensure proper vehicle performance, and avoid the risk of a breakdown while driving.

10. Can extreme weather conditions affect the occurrence of OBDII code P0373 in a MINI?

- Extreme weather conditions, especially temperature fluctuations, can potentially exacerbate issues related to the timing reference high-resolution signal 'A,' leading to the triggering of OBDII code P0373 in a MINI.

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