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P2027 OBD Error Code: Problem & Solutions

OBD Code P2027 - Evaporative Emissions (EVAP) Fuel Vapor Temperature Sensor Circuit High Voltage

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The first thing to do when you have the check engine light on is to find out what the reason is. Once you have found the code that has been set you can proceed with resolving it. In this case you have the P2027 code set by the Powertrain Control Module (PCM) of your vehicle, which means that is has found that the Fuel Tank Temperature sensor is not working as needed to monitor the temperature of the fuel in your vehicles tank. This code is defined as a Evaporative Emissions (EVAP) Fuel Vapor Temperature Sensor circuit high voltage. Read more to know how you can diagnose this code.

Learn More About OBD Error Code P2027

The vehicle’s Powertrain Control Module (PCM) performs the job of monitoring the NVLD (Natural VAcuum Leak Detection) module input, it this to be able to pick up the ambient temperature sensor values expected by the NVLD. When these values aren’t in sync with the limits of the vehicle the P2027 code will be set. In some vehicles the Fuel Tank Temperature sensor is used to monitor the temperature of the fuel that’s left in the tank, this is a very important task for engines health.


What causes this problem with the Evaporative Emissions (EVAP) Fuel Vapor Temperature Sensor Circuit High Voltage?


  • Problems in the EVAP sensor
  • Blockage or leak within system can be found
  • The EVAP fuel vapor temperature sensor wiring harness are either broken or damaged
  • Short Wire
  • Issue with the Pin/connector like corrosion, melting, burning, bending etc
  • Circuit is showing increased resistance
  • Failure of the ECM (Engine Control Module)

Replace/Repair These Parts To Fix Code P2027

  1. Fuel Vapor Temperature Sensor - Has the responsibility of monitoring fuel vapor temperature present in the fuel tank or charcoal canister. All problems can be resolved via repairs or replacement.
  2. Fuel Tank Temperature Sensor - Updates the ECU to adjust the amount of fuel that is injected. Malfunction of the sensor can cause wrong amount of fuel to be injected. Repair or replace it as needed. Find the perfect replacement parts easily at PartsAvatar via our search option on the website, for any help you can also chat with our 24 hour customer help.
  3. Powertrain Control Module - The brain of your vehicle, it monitors and controls the functioning of all other components. Immediately repair or replace it to avoid damage to other parts of your vehicle and get rid of P2027 code. Avail free shipping on orders above CAD $99 from PartsAvatar.
  4. Evaporative Emission Control System (EVAP) - Is responsible for preventing harmful gasoline vapors to be let out into the atmosphere. To get rid of the P2027 error you will have to repair or replace the EVAP. Order on PartsAvatar and receive your delivery at your doorstep!
  5. Engine Control Module - This is the central unit of your vehicle. Problems present in it can potentially damage the whole engine. Ensure you repair or replace them quickly. You can find the perfect ECM for your car on PartsAvatar. Order online today and get rid of P2027 code.
  6. Purge Control Valve Solenoid - It is part of the EVAP system and controls the amount of fuel vapor purged from the charcoal canister. When it’s not working properly it can damage the EVAP. Don’t delay repairs and if needed go for replacement and let go fo the P2027 code.
  7. Charcoal Canister - Absorbs the fuel vapor that would pushed out into the atmosphere, inturn causing pollution. You can repair or replace it s needed to resolve the P2027 code.
  8. Electronic Sensor - Are important and help to pick up information about various components of the vehicle and transfer this information to the PCM. Problems with sensors can result in wrong information being delivered and hence can interfere with the functioning of your car. Repair or replace them as needed.

Symptoms Of The OBD Error Code P2027

Have you ever wondered why is it so important to know the symptoms of the problem? Well, it is extremely essential to know the symptoms of the problem in order to detect it. Keeping this in mind, let’s throw some light on few common symptoms of OBD error code P2027.

Common Symptoms

  • Your car’s check engine light is on
  • Your vehicle has failed the state/provincial emission test
  • Fuel having an odd smell
  • Fuel economy has drastically reduced
  • You’re having problems while filling the fuel.

How To Correct P2027 Evaporative Emissions (EVAP) Fuel Vapor Temperature Sensor Circuit High Voltage

It is very important to fix the fault code P2027. So here are some ways with which you can correct this issue:

 

  • Try to repair or replace Purge Control Valve
  • You can try and repair or replace Purge Control Solenoid
  • Give a shot at repairs or go for replacement of the Charcoal canister
  • Your PCM may require repairs or replacement

There is no need to be anxious as Parts Avatar – Car Parts Online is here to help you out! We have high grade Fuel Vapor Temperature Sensor, Fuel tank temperature sensor , PCM, EVAP, ECM, Charcoal Canister, Purge Control Solenoid, Electronic Sensor, Purge Control Valve and a lot more for our precious customers.

Diagnosing Of Engine Error OBD Code P2027

It is essential to diagnose this fault code. Here are some steps which a mechanic should follow for diagnosing the problem that triggered a P2027 code to be stored:

Get hold of the standard OBD scanner and connect it to the vehicle diagnostic port and retrieve all the codes and freeze frame the data. Any codes if present prior to the P2027 will have to be sorted out first, as they could’ve been the reason this OBD code was set in the first place. Next it’s time to reset the trouble codes, and test-drive the vehicle to see if the code returns. If it does, then you will have to continue the diagnosis, if not then there may be an intermittent condition.

You can now begin the diagnosis starting with a thorough visual inspection of all the electrical components for damages. You may find blown fuses, burned or corroded connectors, bent pins, short wires etc. Make sure you also check the vacuum lines and hoses for any blockages, or damages. Repair or replace everything as needed.

It’s now time to focus on the EVAP system. Be thorough and see if all the related components are free of obstruction and no visible damages like cracks are present. You can also check the pressure differences by locating where the EVAP gets fresh atmospheric air to introduce into its system. You may find most of these parts under the vehicle. Be careful while disconnecting and handling the hoses and pipes of the EVAP system. Any mishandling can cause for damages that may require further replacements and repairs. You can now proceed to test the sensor, refer your vehicles Technical Service Bulletin to find out the specific pinout test to be performed in order to check the functionality of the EVAP sensor.

Common Mistakes When Diagnosing the P2027 Code

  • Damages present in the Fuel tank temperature sensor
  • Failure of the Engine Control Module (ECM)
  • Problem with wiring

Other Diagnostic Codes Related To OBD Code P2027

P2024 - Evaporative Emissions (EVAP) Fuel Vapor Temperature Sensor Circuit

P2026 - Evaporative Emissions (EVAP) Fuel Vapor Temperature Sensor Circuit Low Voltage

P2028 - Evaporative Emissions (EVAP) Fuel Vapor Temperature Sensor Circuit Intermittent