Remove the EVAP canister.
Disconnect the FTP sensor connector (A).

Disconnect the hose (B), remove the retainer (C), and remove the FTP sensor (D).
Install the parts in the reverse order of removal with a new O-ring (E).
Fuel and Emissions System Description - Catalytic Converter System
Catalytic Converter System
Warm Up Three Way Catalytic Converter (WU-TWC) and
Under-floor Three Way Catalytic Converter (Under-floor TWC)
The WU-TWC and the under-flo ...
Front:
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If the Malfunction Indicator Lam Comes On or Blinks
■ Reasons for indicator lamp to come on or blink
• Comes on when there is a problem with the engine emissions control
system, or the fuel fill cap is missing, or loose.
• Blinks when en ...