Checking Fuel Pump Delivery

2. Hold end of fuel return hose from pressure regulator in a measuring glass (approx. 1500 cc).

3, Unplug fuel pump relay from central- electric board.

5. Let fuel run into measuring glass for 30 seconds. See page 24-1 for test values.

Requirements:

Fuel filter and power supply okay.

1. Disconnect fuel return line in engine compartment.

4. Bridge terminals 30 and 87 with an extra wire.

1. Disconnect fuel return line in rear of engine compartment while counterholding (essential).

5. See page 24-121 for test values.

CHECK FUEL PUMP DELIVERY - LH-JETRONIC Beginning with 19 84 Models

1. Disconnect fuel return line in rear of engine compartment while counterholding (essential).

Requirements:

Fuel filter and power supply okay.

4. Pull off fuel pump relay on central electric board and bridge terminals 30 and 87 with an extra wire for 30 seconds.

2. Connect a commercially available fuel hose.

3. Hold end of test hose in a measuring glass (approx. 2000 cc).

Printed in Germany - VIII, 1984 Checking Fuel Pump Delivery - LH-Jetronic, 20-5

Beginning with 1984 Models

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