VIDEO

Acura DTC

Acura DTC P0455

Manufacture

Acura DTC

Code

P0455

Definition

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

  • Faulty or loose fuel fill capPoor connection or damage at the fuel tank vapor control valve hosePoor connections or loose terminals at the FTP sensor, the EVAP canister purge valve, or the EVAP canister vent shut valve, and the PCMFaulty EVAP canister vent shut valveFaulty FTP sensor O-ringFaulty fuel tank vapor control valve hoseFaulty EVAP canister vent shut valve case and O-ringFaulty EVAP canisterFaulty fuel tank unit base gasket, and or fuel tank

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