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FUEL PUMP SPEED CONTROL RELAY OPERATION [L3 Turbo]

id0114b4730400
• Reduces voltage by routing it through the fuel pump resistor to protect the fuel pump when the required fuel amount is low due to low engine speed.

1 | Fuel pump speed control relay off
2 | Fuel pump relay
3 | Fuel pump speed control relay
4 | Fuel pump resistor
5 | Fuel pump
6 | Current flow
7 | Fuel pump speed control relay on