P2028 Fault Code

Evaporative Emissions (EVAP) Fuel Vapor Temperature Sensor Circuit Intermittent

• What does that mean?
• Symptoms
• Causes
• Solutions

The P2028 fault code indicates an issue with the Evaporative Emissions (EVAP) system, specifically related to the Fuel Vapor Temperature Sensor Circuit. This fault signifies that the temperature sensor is experiencing intermittent faults, which may lead to inaccurate readings of fuel vapor temperatures. This can disrupt the vehicle's ability to efficiently manage fuel vapors and emissions.

What are the symptoms of the P2028 code?

Symptoms associated with the P2028 error code can include:

• Illuminated check engine light on the dashboard.
• Decreased fuel efficiency due to improper vapor management.
• Rough idle or poor engine performance in some cases.
• Possible emission test failure due to EVAP system inefficiencies.

What causes the P2028 code?

Common causes of the P2028 fault code may include:

• Faulty fuel vapor temperature sensor.
• Damaged wiring or connectors in the sensor circuit.
• Poor electrical connections or shorts within the circuit.
• Malfunctions in the Engine Control Module (ECM) that affect sensor readings.

How to fix P2028?

To resolve the P2028 fault code, consider the following steps:

• Inspect and replace the fuel vapor temperature sensor if found faulty.
• Check the wiring and connectors associated with the sensor for damage or corrosion, repairing as necessary.
• Clear the code after repairs and conduct a road test to ensure the issue has been resolved.
• If the problem persists, consider checking the Engine Control Module (ECM) or consulting a professional mechanic for further diagnosis.