2002 Ford Crown Victoria Natural Gas Vehicle Supplement 1st Printing - Page 6

Servicing your vehicle E-450 Cutaway 1. Fuel rail sensors-An injection pressure sensor and an engine fuel temperature sensor provide engine fuel information to the powertrain control module. 2. Isolation solenoid valve-Blocks flow from supply line to injection manifold when the engine is off. 3. Engine-A modified 5.4L gasoline engine with Sequential Electronic Fuel Injection (SEFI), an improved valvetrain and a high compression ratio. 4. Powertrain control module-Uniquely calibrated for NGV application. 5. Extended range fuel tank-An optional steel fuel tank located in the cargo area. 6. Sealed vent box-Dispenses natural gas vapor to atmosphere if vapor becomes present. 7. Internal tank valve-One electronically actuated, normally closed solenoid valve is located in each fuel tank. The valve is wired into the vehicle's inertia switch. If the engine cranks but does not start after a 6