Main Pump Delivery Volume
- Check transfer pump (if equipped) and fuel filter. Disconnect fuel return line and place open end in measuring container. Switch on fuel pump with jumper switch. Check fuel pump delivery volume for 30 second period. Delivery rates are given with voltage reading at pump as volume will change with different voltages.
- Minimum delivery volume for Volkswagen Quantum models is .71 qts. (.68L) for 30 seconds with reading of 11.4 volts at fuel pump. Minimum delivery volume for Volkswagen models using 52 mm fuel pump is .62 qts. (.59L) for 30 seconds with reading of 11.4 volts at fuel pump. Voltage is measured with engine off and fuel pump activated by jumper switch.