Checking Fuel Delivery

Test 1 - 2:

Test 3 - 6:

Test 7 - 9:

SYMPTOM
CHECKING FUEL DELIVERY

POSSIBLE CAUSES
- Fuel pressure out of specification
- Restricted fuel supply line
- Fuel pump inlet strainer plugged
- Fuel pump
- (A61) fuel pump relay output circuit open
- (A14) fused B+ circuit or (F18) fused ignition switch output circuit open
- Fuel pump relay
- (Z1) fuel pump ground circuit excessive resistance
- Fuel pump module