Fuel Pressure: Testing and Inspection

Test 1:

Tests 2 - 6:

Test 7:

SYMPTOM
CHECKING FUEL DELIVERY

POSSIBLE CAUSES
- Fuel filter/pressure regulator (high)
- Fuel pump capacity (volume) out of specs
- High resistance in the fuel pump relay output circuit
- Fuel pump inlet strainer plugged
- High resistance in the fuel pump ground circuit
- Fuel pump module
- Kinked/restricted fuel supply line