DTC P0455 Acura
Evaporative Emission (EVAP) System Large Leak Detected
Evaporative Emission (EVAP) System Large Leak Detected
Description
The execution time is once per driving cycle and the duration time is 36 minutes and 37 seconds, or less. Here is an overview of the malfunction detection for the EONV method: 1: Judgement of detection of 0.09 inch leak as normal operation 2: Judgement of detection of 0.02 inch leak as normal operation 3: Detection of 0.02 inch leak 4: Detection of atmospheric pressure failure 5: Flickering of the FTP sensor The execution time is once per driving cycle and the duration time is 36 minutes and 37 seconds, or less. The variation of pressure inside the fuel tank is 0.03 kPa (0.009 in. Hg, 0.24 mmHg) or more. NOTE: Before you troubleshoot, record all freeze data and any on-board snapshot.
Cause and Solution
Faulty or loose fuel fill cap
Poor connection or damage at the fuel tank vapor control valve hose
Poor connections or loose terminals at the FTP sensor, the EVAP canister
purge valve, or the EVAP canister vent shut valve, and the PCM
Faulty EVAP canister vent shut valve
Faulty FTP sensor O-ring
Faulty fuel tank vapor control valve hose
Faulty EVAP canister vent shut valve case and O-ring
Faulty EVAP canister
Video Guide
Diagnostic Info
- DTC Code: P0455
- Brand: Acura