Fuel Metering System

The fuel metering system is made up of the following parts:
^ Fuel rail assembly, including:
a. Fuel injectors
b. Pressure regulator
^ Throttle body assembly, including:
a. Idle air control (IAC) valve
b. Throttle position (TP) sensor

Fuel Tank
The fuel tank is a blow-molded, high-density polyethylene container. This material is multi-layer in construction to enhance its ability to minimize leakage of fuel vapors to the atmosphere (impermeability). It is generally 4.0 mm to 5.0 mm in thickness, The tank includes space for vapor and expansion of the fuel with temperature changes.