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Home >> Infiniti >> 2003 >> Q45 >> Repair and Diagnosis >> External Pages >> Different car >> Section 201 (Engine Control System) >> Fuel Pump Circuit >> Diagnostic Procedure >> 1. Check Overall Function
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1. Check Overall Function

WARNING: This page is about a different car, the 2004 Infiniti Q45. However, it is still accessible from the selected car via links, so may be relevant.
  1. Turn ignition switch ON.
  2. Pinch fuel feed hose with two fingers.

    Fuel pressure pulsation should be felt on the fuel feed hose for 5 second after ignition switch is turned ON. 

OK or NG 

OK: INSPECTION END 

NG: GO TO 2.

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