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volvo Workshop Repair Guides


940 L4-2.3L SOHC VIN 88 B230F (1992)

Engine, Cooling and Exhaust > Engine > Tune-up and Engine Performance Checks > Fuel Pressure > System Information > Specifications > Page 3454

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Continue with Starting Fuel Pump section below.

Starting Fuel Pump
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Lift out the central electrical module and remove the system relay.

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Connect a wire between terminals 30 and 87/2 on the relay board. The Fuel Pump should now START.

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Continue to Measuring System Pressure.

CAUTION:  Jump connecting between the wrong terminals will destroy the LH control module.

Measuring System Pressure
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Read the system pressure on the pressure gauge. 

The system pressure should be 300 kPa (43 psi).

If the system pressure is too low:
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Proceed to: System Pressure Too Low section below.

If the system pressure is too high:
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Proceed to: System Pressure Too High section below.

If the system pressure is normal:
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Proceed to: Checking the Pressure Regulator section below.

System Pressure Too Low
^

Pinch the return lead and check to see if pressure rises.

Engine, Cooling and Exhaust > Engine > Tune-up and Engine Performance Checks > Fuel Pressure > System Information > Specifications > Page 3454

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