Jet Pump

The jet pump is an additional pump used when the fuel tank bottom is divided into two chambers. Excess fuel flowing through the fuel return passes through a venturi. This creates a low pressure area around the venturi, and this action will draw the fuel out of Chamber B, and sends it into Chamber A.

Fuel Pump Control

--By ECM

- ON/OFF Control —

By Fuel Pump Switch

Fuel Pump

Control Method

By ECM and Fuel Pump

— Control Relay and

- ON/OFF Control—


With Speed

By ECM and Fuel

Pump ECU

Fig. 4-06

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