Engine-CodesHonda – P1192 Honda

P1192 Honda Code - Fuel Tank Pressure Sensor Circuit Low Voltage

Quick Answer

The P1192 Honda code indicates a problem with the fuel tank pressure sensor circuit, specifically a low voltage condition. Common causes include Faulty fuel tank pressure sensor, Damaged or corroded wiring in the sensor circuit, ECM malfunction. 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
P1192 Honda indicates Fuel Tank Pressure Sensor Circuit Low Voltage.
Common causes
Common causes include Faulty fuel tank pressure sensor, Damaged or corroded wiring in the sensor circuit, ECM malfunction.
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 Sep 10, 2024
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Code P1192 Honda Description

The P1192 Honda code indicates a problem with the fuel tank pressure sensor circuit, specifically a low voltage condition. The fuel tank pressure sensor is a crucial component of the vehicle's evaporative emissions system, responsible for monitoring the pressure inside the fuel tank. This information is used by the engine control module (ECM) to ensure proper fuel vapor management and emission control.

OBDII Code P1192 Honda - Fuel Tank Pressure Sensor Circuit Low Voltage
P1192 Honda Code - Fuel Tank Pressure Sensor Circuit Low Voltage

Common Causes of P1192 Honda

  1. Faulty fuel tank pressure sensor
  2. Damaged or corroded wiring in the sensor circuit
  3. ECM malfunction
  4. Vacuum leaks in the evaporative emissions system
  5. Fuel filler cap not properly sealed

Symptoms of P1192 Honda

  1. Check Engine light illuminated
  2. Decreased fuel efficiency
  3. Rough idling or stalling
  4. Difficulty starting the vehicle
  5. Increased emissions

How to Fix P1192 Honda

  1. Begin by connecting a diagnostic scanner to the vehicle's OBD-II port to retrieve the specific trouble code and confirm that it is indeed P1192.
  2. Inspect the wiring and connectors in the fuel tank pressure sensor circuit for any damage, corrosion, or loose connections. Repair or replace as necessary.
  3. Test the fuel tank pressure sensor using a multimeter to ensure it is functioning properly. Replace the sensor if it is faulty.
  4. Check for any vacuum leaks in the evaporative emissions system and repair them accordingly.
  5. Clear the trouble code from the ECM's memory using the diagnostic scanner and test drive the vehicle to ensure the issue has been resolved.

Cost to Fix P1192 Honda

The typical repair costs for addressing a P1192 Honda code can vary depending on the specific cause of the issue. In general, replacing a faulty fuel tank pressure sensor can cost between $100 and $200, while repairing wiring or connectors may range from $50 to $150. Labor costs at auto repair shops can add an additional $80 to $150 per hour, with total repair costs potentially exceeding $300 to $500. It's recommended to consult with a certified mechanic for a more accurate estimate based on your vehicle's make and model.

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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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