System Inspection

Engine Control

P0455 Evaporative Emission System-Leak detected (Large leak) - System Inspection

Component Inspection

1. IG "OFF" & connect scantool.
2. ENG "ON" and Race the accelerator pedal at idle and Monitor "FTPS" parameter is changing while PCSV is operating on the service data.

Specification : Fuel Tank Pressure is O.K if pressure changes more than 0.2 while racing accelerator pedal.

3. Does the FTPS change while racing the accelerator pedal at idle?






System Inspection

Check Fuel Filler Cap
1. Check the Fuel Filler Cap is installed and properly tightened.
2. Check if the Fuel Filler Cap seal is missing or damaged.
3. Is the Fuel Filler Cap OK?





Check vapor hoses for leakage in fuel system
1. Check vapor hoses between the following components for leakage:
> Intake manifold ~ Purge control solenoid valve (PCSV)
> Purge control solenoid valve (PCSV) ~ Canister
> Canister ~ Canister close valve (CCV)
> Canister ~ fuel tank
2. Does a leak exist?





Check vapor hoses for stuck in fuel system
1. Check vapor hoses between the following components for stuck:
> Intake manifold ~ Purge control solenoid valve (PCSV)
> Purge control solenoid valve (PCSV) ~ Canister
> Canister ~ fuel tank
2. Does a leak exist?





Check fuel filler pipe for crack or leakage
1. Check that there is crack or leakage in fuel filler pipe.
2. Is there any crack or leakage?