Fuel Pressure: Testing and Inspection

Tests 1 - 2:

Tests 3 - 5:

Tests 6 - 10:

SYMPTOM
*CHECKING FUEL DELIVERY

POSSIBLE CAUSES
- Fuel pump relay
- Fuel pressure out of specs
- Restricted fuel supply line
- Fuel pump inlet strainer plugged
- Fuel pump module
- Fuel pump capacity (volume) out of specs
- Fuel pump relay fused B+ circuit
- Fuel pump relay output circuit open
- Fuel pump ground circuit open/high resistance
- Fuel pump module