LEMON Manuals: Even more car manuals for everyone
Home >> Mini >> 2012 >> Cooper Base, 2D Convertible, Automatic Trans >> Repair and Diagnosis >> External Pages >> Different car >> Section 6 (Engine Controls - System & Component Testing) >> Fuel System >> Fuel Delivery >> Fuel Pressure Regulator

Fuel Pressure Regulator

WARNING: This page does not describe the selected car, but rather 13 other vehicles, including the 1999 BMW Z3, 1999 BMW M3, 1999 BMW M Roadster, 1999 BMW M Coupe, and 1999 BMW 740iL. However, it is still accessible from the selected car via links, so may be relevant.
  1. Remove fuel pressure regulator. See REMOVAL, OVERHAUL & INSTALLATION article. Note code number and nominal pressure on fuel pressure regulator body. Install BMW Service Tester (133060) with connecting hose (133064) in fuel feed left line.
  2. Remove fuel pump relay. See DME & FUEL PUMP RELAY LOCATION  table. Connect jumper wire between relay base terminals No. 30 and 87. Read off fuel injection pressure on pressure gauge.
  3. If fuel pressure drops rapidly, seal return line (upper line) with Clamp (133010) and briefly operate fuel pump. If injection pressure in now stable, pressure regulator is defective. If injection pressure drops, check for leak in front of pressure regulator.
scientia non olet · About LEMON Manuals