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Home >> BMW >> 1982 >> 633CSi Automatic Trans >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> BMW MOTRONIC Emission Control System >> Testing >> Test 1: Fuel Pressure >> Fuel Pressure Too Low
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Fuel Pressure Too Low

Fuel feed is probably restricted. Check for kinked, bent or clogged fuel line. Repair or re-route as needed. Check fuel filter for excessive restriction and replace if dirty. Clean filter screen in fuel intake. Check pressure regulator operation and replace if defective.