P1451 - EVAP Control System Canister Vent Solenoid Circuit Malfunction

Repair Importance Level: 3/3
Repair Difficulty Level: 3/3    What is this?
Table of contents

P1451 Possible Causes

  • Faulty Canister Vent Solenoid
  • Canister Vent Solenoid harness is open or shorted
  • Canister Vent Solenoid electrical circuit poor connection
  • Faulty Powertrain Control Module (PCM)

How do I fix code P1451?

Check the "Possible Causes" listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector's pins.
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Cost of diagnosing the P1451 code

Labor: 1.0

The cost of diagnosing the P1451 code is 1.0 hour of labor. The auto repair labor rates vary by location, your vehicle's make and model, and even your engine type. Most auto repairs shops charge between $75 and $150 per hour.

Possible Symptoms

  • Engine Light ON (or Service Engine Soon Warning Light)

P1451 Description

The Powertrain Control Module (PCM) monitors the Canister Vent (CV) solenoid circuit for an electrical failure. The test fails when the signal moves outside the minimum or maximum allowable calibrated parameters for a specified canister vent duty cycle by PCM command.
OBDII Code P1451 - EVAP Control System Canister Vent Solenoid Circuit Malfunction - AutoCodes.com

More Information

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Information for specific makes

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  • P1451 CHEVROLET Barometric Pressure Sensor Performance
  • P1451 DODGE Diesel Particulate Filter System Performance
  • P1451 FORD EVAP Control System Canister Vent Solenoid Circuit Malfunction
  • P1451 GMC Barometric Pressure Sensor Performance
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  • P1451 LINCOLN EVAP Control System Canister Vent Solenoid Circuit Malfunction
  • P1451 MAZDA EVAP Canister Vent Solenoid Malfunction
  • P1451 MERCURY EVAP Control System Canister Vent Solenoid Circuit Malfunction
  • P1451 SAAB Evaporative Emission Pressure Sensor In Fuel Tank Range/Performance Problem
  • P1451 SUZUKI Barometric Pressure Sensor Performance
  • P1451 TOYOTA Fuel Tank Pressure Sensor Range/Performance
  • P1451 VOLKSWAGEN Secondary Air Injection Circuit Short To Ground

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