AutoCodes – Generic – P2027

P2027 Code - Evaporative Emissions Fuel Vapor Temperature Sensor Circuit High Voltage

Quick Answer

The Powertrain Control Module (PCM) monitors the Natural Vacuum Leak Detection (NVLD) module input for expected NVLD ambient temperature sensor values. Common causes include Faulty Natural Vacuum Leak Detection (NVLD) module, Natural Vacuum Leak Detection (NVLD) module harness is open or shorted, Natural Vacuum Leak Detection (NVLD) module circuit poor electrical connection. 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
P2027 indicates Evaporative Emissions Fuel Vapor Temperature Sensor Circuit High Voltage.
Common causes
Common causes include Faulty Natural Vacuum Leak Detection (NVLD) module, Natural Vacuum Leak Detection (NVLD) module harness is open or shorted, Natural Vacuum Leak Detection (NVLD) module circuit poor electrical connection.
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.
AI answers can be wrong. Verify repairs with testing. Open full chat
Code Popularity 15,281
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Jun 14, 2020
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Code P2027 Description

The Powertrain Control Module (PCM) monitors the Natural Vacuum Leak Detection (NVLD) module input for expected NVLD ambient temperature sensor values. The P2027 code sets when the input is outside a calibrated set of limits.
OBDII Code P2027 - Evaporative Emissions Fuel Vapor Temperature Sensor Circuit High Voltage - AutoCodes.com
P2027 Code - Evaporative Emissions Fuel Vapor Temperature Sensor Circuit High Voltage

What are the Possible Causes of the DTC P2027?

  • Faulty Natural Vacuum Leak Detection (NVLD) module
  • Natural Vacuum Leak Detection (NVLD) module harness is open or shorted
  • Natural Vacuum Leak Detection (NVLD) module circuit poor electrical connection
  • Faulty Powertrain Control Module (PCM)

How to Fix the DTC P2027?

Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P2027 code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.

Need more information about the P2027 code?

Need more information on how to fix the P2027 code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P2027 code diagnosed by a professional: Find a repair shop in your area

Information for Specific Makes

  • P2027 Dodge β€” Evaporative Emissions Fuel Vapor Temperature Sensor Circuit High Voltage
  • P2027 Ford β€” Evaporative Emissions Fuel Vapor Temperature Sensor Circuit High Voltage
  • P2027 Lincoln β€” Evaporative Emissions Fuel Vapor Temperature Sensor Circuit High Voltage
  • P2027 Mercury β€” Evaporative Emissions Fuel Vapor Temperature Sensor Circuit High Voltage
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.

Frequently Asked Questions about P2027 Code

1. What are the common symptoms of OBDII code P2027?

- Common symptoms include the check engine light illuminating, poor fuel efficiency, rough idle, and potential issues with the vehicle's emissions system.

2. What can cause the triggering of OBDII code P2027?

- The code can be triggered by a faulty fuel vapor temperature sensor, damaged wiring or connectors in the sensor circuit, or issues with the engine control module.

3. How serious is OBDII code P2027?

- While the code may not cause immediate drivability issues, it can affect the vehicle's emissions and fuel efficiency. It is recommended to address the issue promptly.

4. How can I diagnose the cause of OBDII code P2027?

- Diagnosing the code typically involves using a scan tool to read the code, checking the fuel vapor temperature sensor and its circuit for faults, and inspecting wiring and connectors for damage.

5. Can I continue driving with OBDII code P2027 present?

- It is generally safe to drive with the code, but it is advisable to address the issue as soon as possible to prevent potential long-term damage to the vehicle's emissions system.

6. What are some repair tips for fixing OBDII code P2027?

- Repair tips may include replacing the fuel vapor temperature sensor, repairing or replacing damaged wiring or connectors, and resetting the fault code with a scan tool after the repair.

7. How much does it cost to repair OBDII code P2027?

- The cost of repair can vary depending on the cause of the code, the labor rates in your area, and whether you choose to do the repairs yourself or take your vehicle to a mechanic.

8. Can a DIY enthusiast fix OBDII code P2027?

- Yes, depending on your mechanical skills and access to tools, it is possible to diagnose and repair OBDII code P2027 yourself. However, if you are unsure, it is recommended to seek professional help.

9. Does OBDII code P2027 affect vehicle performance?

- While the code may not directly affect performance, it can lead to issues with emissions, fuel efficiency, and could potentially cause drivability problems if left unresolved.

10. How often does OBDII code P2027 occur in vehicles?

- OBDII code P2027 is not as common as some other codes, but it can still occur in vehicles, especially in older cars or those with high mileage. Regular maintenance can help prevent it.

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