Purpose, Function
Releases evaporative gas from the fuel tank if there is a malfunction in the evaporative gas passage between the fuel tank and the intake manifold. As a result, deformation of the fuel tank caused by evaporative gas pressure is prevented.
Construction
The fuel-filler cap is installed to the fuel filler opening.

The fuel-filler cap consists of a valves, retainer, and springs.

Operation
When there is positive pressure in the fuel tank due to evaporative gas, evaporative gas is released into the atmosphere. When there is negative pressure, air is introduced to the fuel tank.

Fuel Filler Cap Inspection
Fuel Filler Lid AdjustmentOil Seal (Differential) Replacement [C66 M R]
1. Remove the front under cover No.2..
2. Drain the manual transaxle oil..
3. Disconnect the drive shaft (LH) from the MTX..
4. Disconnect the drive shaft (RH) from the MTX..
5. Remove the oil seal (LH).
6. Remove the oil seal (RH).
7. Using the SSTs and a hammer, tap a new oil s ...
Barometric Pressure (Baro) Sensor
Purpose/Function
Detects the BARO as basic information for mainly determining the fuel injection
amount.
Detects the BARO and inputs it to the PCM as a BARO signal.
Construction
Built into the PCM.
A piezoelectric element has been adopted for detecting th ...
Engine Front Cover
Purpose, Function
The engine front cover covers the front of the engine to prevent engine oil
spillage, noise leakage, and foreign material penetration.
Construction
The engine front cover is installed to the front of the engine.
The lightweight engine front ...