Engine-CodesHonda – P1793 Honda

P1793 Honda Code - Manifold Absolute Pressure Sensor Circuit

Quick Answer

The P1793 Honda code indicates a problem with the Manifold Absolute Pressure (MAP) sensor circuit in the vehicle. Common causes include Faulty MAP sensor, Wiring issues, Poor connection. Severity is Moderate - service should be scheduled soon. The vehicle may still be drivable for short trips if it runs normally, but avoid hard driving and repair it soon.

What it means
P1793 Honda indicates Manifold Absolute Pressure Sensor Circuit.
Common causes
Common causes include Faulty MAP sensor, Wiring issues, Poor connection.
Severity
Moderate - service should be scheduled soon.
Can I drive?
The vehicle may still be drivable for short trips if it runs normally, but avoid hard driving and repair it soon.
Table of contents Created and updated by William Orellana on Sep 09, 2024
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Code P1793 Honda Description

The P1793 Honda code indicates a problem with the Manifold Absolute Pressure (MAP) sensor circuit in the vehicle. The MAP sensor is a key component of the engine management system, as it measures the pressure inside the intake manifold. This information is crucial for the engine control unit (ECU) to determine the correct air-fuel mixture for optimal engine performance.

OBDII Code P1793 Honda - Manifold Absolute Pressure Sensor Circuit
P1793 Honda Code - Manifold Absolute Pressure Sensor Circuit

Common Causes of P1793 Honda

  1. Faulty MAP sensor
  2. Wiring issues
  3. Poor connection
  4. ECU malfunction
  5. Vacuum leaks

Symptoms of P1793 Honda

  1. Poor fuel efficiency
  2. Rough idling
  3. Hesitation or surging during acceleration
  4. Stalling
  5. Lack of power

How to Fix P1793 Honda

  1. Begin by conducting a visual inspection of the MAP sensor and its wiring. Look for any obvious signs of damage or loose connections.
  2. Use a multimeter to test the MAP sensor's voltage output. Compare the readings to the manufacturer's specifications to determine if the sensor is functioning correctly.
  3. Inspect the wiring harness for any breaks, frays, or corrosion. Repair or replace any damaged wiring as needed.
  4. If the MAP sensor itself is faulty, it will need to be replaced with a new one. Be sure to follow the manufacturer's guidelines for installation.
  5. After completing the repair, clear the diagnostic trouble codes (DTCs) from the vehicle's ECU and test drive the vehicle to ensure that the issue has been resolved.

Cost to Fix P1793 Honda

The cost of repairing a Manifold Absolute Pressure Sensor Circuit issue can vary depending on the extent of the problem and the specific components that need to be replaced. In general, the cost of a new MAP sensor can range from $50 to $200, depending on the vehicle make and model. Labor costs for this type of repair can range from $100 to $300, depending on the shop's hourly rate and the complexity of the repair. It is advisable to contact local auto repair shops for a more accurate estimate based on your specific vehicle.

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Information for Specific Honda Models

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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