Switch - EVAP System Monitor: Removal

The ESIM (EVAP System Integrity Monitor) switch is attached to the EVAP canister and is usually not serviceable. Replace the switch by replacing the EVAP canister. Refer to EVAP canister removal/installation. 

If servicing separately, refer to the following: 

Fig 1: Identifying EVAP Canister, ESIM Switch And Electrical Connector

Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.

The ESIM switch (2) is located on the EVAP canister (1) The picture displays a typical EVAP Canister and a typical ESIM switch  .

Fig 2: Removing Vapor Hose From NVLD Pump

Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.

1. Remove both plastic lines from switch by folding line tabs (2).
   Fig 3: Identifying ESIM Switch, O-Ring And EVAP Canister Opening

   Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
2. Disconnect electrical connector at switch.
3. Clean any dirt from ESIM switch and its lines.
   Fig 4: Locating Locking Tab

   Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
4. A lock tab (see arrow) is used on the back of the switch. Push lock tab towards switch while rotating switch counterclockwise 1/4 turn for removal.
5. The fresh air lines and hoses from the ESIM must have a clear opening to the atmosphere. Check the fresh air lines, including the fresh air filter, for obstructions or restrictions at the ESIM. Also check the routing to the exit to atmosphere. If a restriction is present, the system will not allow free flow passage of clean air, and an early shut off of the fuel fill nozzle may occur during fuel fill.