Alero V6-3.4L VIN E (1999)
Circuit Description
When the ignition switch is turned ON, the Powertrain Control Module (PCM) will turn ON the in-tank fuel pump. The in-tank fuel pump will remain
ON as long as the engine is cranking or running and the PCM is receiving reference pulses. If there are no reference pulses, the PCM will turn the in-tank
fuel pump OFF 2 seconds after the ignition switch is turned ON or 2 seconds after the engine stops running. The in-tank fuel pump is an electric pump
within an integral reservoir (4). The in-tank fuel pump supplies fuel through the fuel feed pipe (1), and in-line fuel filter (2) to the Fuel Rail Assembly
(8). The fuel pump is designed to provide fuel at a pressure above the pressure needed by the fuel injectors (9). A fuel pressure regulator (7), attached to
