Engine-CodesAcura – P1289 Acura

P1289 Acura Code - Engine Oil Pressure Sensor Stuck High

Quick Answer

The P1289 diagnostic trouble code for Acura vehicles indicates that the engine oil pressure sensor is stuck high. Common causes include Faulty engine oil pressure sensor, Wiring or electrical connection issues to the sensor, Engine oil contamination affecting sensor readings. 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
P1289 Acura indicates Engine Oil Pressure Sensor Stuck High.
Common causes
Common causes include Faulty engine oil pressure sensor, Wiring or electrical connection issues to the sensor, Engine oil contamination affecting sensor readings.
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.
Table of contents Created and updated by William Orellana on Aug 30, 2024
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Code P1289 Acura Description

The P1289 diagnostic trouble code for Acura vehicles indicates that the engine oil pressure sensor is stuck high. This means that the sensor is sending a signal to the engine control module (ECM) indicating that the oil pressure is excessively high, even when it may not be the case. This can lead to incorrect readings being sent to the ECM, potentially causing the engine to run with incorrect oil pressure levels.

OBDII Code P1289 Acura - Engine Oil Pressure Sensor Stuck High
P1289 Acura Code - Engine Oil Pressure Sensor Stuck High

Common Causes of P1289 Acura

  1. Faulty engine oil pressure sensor.
  2. Wiring or electrical connection issues to the sensor.
  3. Engine oil contamination affecting sensor readings.
  4. Issues with the engine oil pump.
  5. ECM malfunction causing incorrect sensor readings.

Symptoms of P1289 Acura

  1. Check engine light illuminated on the dashboard.
  2. Engine running rough or misfiring.
  3. Reduced engine power or acceleration.
  4. Oil pressure gauge reading excessively high.
  5. Engine knocking or ticking noises.

How to Fix P1289 Acura

  1. Begin by verifying the code using a diagnostic scanner to confirm the issue.
  2. Inspect the wiring and electrical connections to the engine oil pressure sensor for any damage or corrosion.
  3. Replace the engine oil pressure sensor if it is found to be faulty.
  4. Check and clean the engine oil pump to ensure proper oil pressure flow.
  5. Clear the trouble code from the ECM and perform a test drive to verify that the issue has been resolved.

Cost to Fix P1289 Acura

The typical repair costs for addressing the P1289 Acura code can range from $100 to $300, depending on the cost of the replacement sensor and any additional parts or labor required. It's important to note that the specific diagnosis time and labor rates at auto repair shops can vary, so it's advisable to inquire locally for a more accurate estimate.

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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.

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