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.
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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.
Common Causes of P1793 Honda
- Faulty MAP sensor
- Wiring issues
- Poor connection
- ECU malfunction
- Vacuum leaks
Symptoms of P1793 Honda
- Poor fuel efficiency
- Rough idling
- Hesitation or surging during acceleration
- Stalling
- Lack of power
How to Fix P1793 Honda
- Begin by conducting a visual inspection of the MAP sensor and its wiring. Look for any obvious signs of damage or loose connections.
- 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.
- Inspect the wiring harness for any breaks, frays, or corrosion. Repair or replace any damaged wiring as needed.
- 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.
- 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
- P1793 1996 Honda Civic — Manifold Absolute Pressure Sensor Circuit
- P1793 1997 Honda Civic — Manifold Absolute Pressure Sensor Circuit
- P1793 1999 Honda Civic — Manifold Absolute Pressure Sensor Circuit
- P1793 2000 Honda Civic — Manifold Absolute Pressure Sensor Circuit
Frequently Asked Questions about P1793 Honda Code
No Frequently Asked Questions about P1793 Honda Code found.
Discuss the causes and fixes for P1793 Honda OBDII Code
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The sensor is on the left rear side of the engine. Unfortunately, this is the only image I got. I hope it helps.

Click here to enlarge image
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