Models: Opel Astra H Hatch 1.9 Cdti Z19dt， Isuzu 8-97369-850-0 , 8-97369-850-1 ，Saab 9-3 1.9 Tid, Chevrolet 97369850 ，GMC Sierra Duramax 97369850
Pump: 0445020030, 0986437308, 97780091, 8-97303-762-0
Warranty: 12 Months
The fuel metering unit includes a fuel metering valve, a metering valve actuator, a fail-fixed valve, a flow increase valve, and a flow decrease valve. The fuel metering unit is configured such that, upon electrical power interruption to the metering valve actuator, the fail-fixed valve shifts and provides a hydraulic lock on the fuel metering valve, to thereby maintain its position. The flow increase and flow decrease valves are powered from a power source that is independent of that used to power the fuel metering unit and, when appropriately energized will allow.