Hyundai Kia Error Code P1378: How to Fix It

Q: Can I drive with P1378 error code?

Yes, you can typically drive with P1378 as it relates to the emissions system rather than critical engine operation. However, you should address it promptly as it may affect fuel economy and your vehicle may not pass emissions testing.

Q: How much does it cost to fix P1378?

Repair costs vary depending on the root cause. A simple gas cap replacement costs $20-40, while FTPM module replacement can range from $200-600 including parts and labor. Diagnostic time typically adds $100-150 to the total cost.

Q: Will P1378 cause my car to fail inspection?

Yes, P1378 will likely cause your vehicle to fail emissions inspection in areas where OBD2 testing is required. The check engine light associated with this code indicates an emissions system fault that must be repaired before passing inspection.

Q: How do I prevent P1378 from happening again?

Regularly check your gas cap for proper sealing, avoid topping off your fuel tank, and address any fuel system issues promptly. Keep vacuum lines in good condition and have your evaporative emission system inspected during regular maintenance.

Q: Is P1378 the same on all Hyundai and Kia models?

P1378 generally refers to the same FTPM fault across Hyundai and Kia models, but the exact location and access procedures may vary by vehicle model and year. Always consult your specific vehicle's service manual for model-specific information.

Abstract

Error code P1378 in Hyundai and Kia vehicles indicates a fault with the Fuel Tank Pressure Module (FTPM), which monitors fuel vapor pressure in the evaporative emission system. While this error typically won't prevent your car from running, it can cause the check engine light to illuminate and may affect fuel economy and emissions compliance.