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Home >> Buick >> 1994 >> Roadmaster Limited >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Tests W/Codes - 5.7L >> ECM/Pcm Code Charts >> Code 64, Right Heated Oxygen Sensor Lean Indication >> Fuel Pressure
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Fuel Pressure

System will be lean if fuel pressure is low. If necessary, monitor fuel pressure while driving vehicle. For fuel pressure checking procedure, see BASIC TESTING article in this section.

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