Acura P1456: EVAP System Leak Detected (Fuel Tank Area)
Is your scanner showing Acura P1456?
No worries. We'll show you what it means and how to deal with it.
Acura P1456: EVAP System Leak Detected (Fuel Tank Area)
OVERVIEWWhat Does The Acura P1456 Code Mean?
Condition for setting the DTC: IAT sensor signal from 32-86ºF at startup, vehicle driven to a speed over 5 mph for 2-3 minutes, ECT sensor signal over 154ºF, then with the EVAP Control and Vent solenoids “on”, the PCM detected an incorrect fuel tank pressure value due to a leak in the
What Are The Potential Causes Of The Acura P1456 Code?
Below are some potential causes of this DTC:
- Fuel tank cap damaged, loose or the wrong part number
- Fuel tank leaks at the fuel fill pipe or at the fuel tank seals
- Fuel vapor control valve is damaged or has failed
- Fuel tank vapor recirculation valve or vapor tube is damaged
Recommended Parts
Below are some recommended auto parts to help you address the trouble code affecting your vehicle and get it running smoothly again:
>>> Gates 94-01 Acura Integra / 91-95 Legend Locking Fuel Cap
>>> Acura Fuel Tank Pressure Sensor
>>> Genuine Honda Purge Control Solenoid Valve Assembly
Note: During the purchasing process, please check carefully whether the part you want to buy fits your car!
Reference Sources
- 2001 Engine Performance Acura Self-Diagnostics, MDX, 3.2CL & 3.2TL, pp.39-45.
- American Honda Motor Co, Inc., 2015, Acura Technical Service Bulletin – Troubleshooting DTC P1456 and P1457.
