Symptom:
*CHECKING THE FUEL PRESSURE SOLENOID CIRCUITS
POSSIBLE CAUSES
FUEL PRESSURE SOLENOID RESISTANCE
OPEN CIRCUITS
TEST
ACTION
APPLICABILITY
1
Turn the ignition off.
Disconnect the Fuel Pressure Solenoid harness connector.
Disconnect the ECM harness connectors.
Visually inspect the related wiring harness. Look for any chafed, pierced, pinched, or
partially broken wires. Repair as necessary.
Visually inspect the related wiring harness connectors. Look for broken, bent, pushed
out, or corroded terminals. Repair as necessary.
Measure the resistance of both Fuel Pressure Solenoid circuits between the ECM
harness connector and the Fuel Pressure Solenoid harness connector.
Is the resistance below 10.0 ohms for both measurements?
All
Yes
→ Go To 2
No
→ Repair open circuit(s) as necessary.
Perform ROAD TEST VERIFICATION - VER-2.
2
Turn the ignition off.
Disconnect the Fuel Pressure Solenoid harness connector.
Measure the resistance of the Fuel Pressure Solenoid.
Is the resistance between 3.5 and 5.5 ohms?
All
Yes
→ Test Complete.
No
→ Replace the Fuel Pressure Solenoid.
Perform ROAD TEST VERIFICATION - VER-2.
233
DRIVEABILITY - DIESEL