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Home >> Chevrolet >> 2006 >> Optra5 LS, Automatic >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - 2.0L (L34 GMDAT) - Introduction And Mechanical Repairs >> Description and Operation >> Fuel System Description >> Fuel Pump Relay
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Fuel Pump Relay

The fuel pump relay allows the engine control module (ECM) to energize the fuel pump. The ECM enables the fuel pump whenever the crankshaft position (CKP) sensor pulses are detected.

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